diff --git a/frontend/src/app/widgets/w-materials/w-materials.component.html b/frontend/src/app/widgets/w-materials/w-materials.component.html
index b46d349..1265293 100644
--- a/frontend/src/app/widgets/w-materials/w-materials.component.html
+++ b/frontend/src/app/widgets/w-materials/w-materials.component.html
@@ -12,7 +12,7 @@
       <div class="sm:basis-2/3 basis-full flex gap-4">
         <button class="basis-1/2 text-white px-3 py-2 rounded-md text-sm font-medium" (click)="onCycleChange(cycleType.BACHELORS)"
                 [ngClass]="selectedCycle === cycleType.BACHELORS ? 'bg-gray-200 text-black hover:bg-gray-300' : 'bg-gray-800 hover:bg-gray-900'">Bachelor. Year: {{selectedYear}}</button>
-        <a class="sm:basis-1/3" href="https://drive.google.com/drive/folders/1aRdLkrZmiv9x0CewuFKiJHZJZZgzw2ye?usp=sharing" target="_blank">
+        <a class="sm:basis-1/3" href="https://drive.google.com/drive/folders/13c_adbgaJ1UVBcHMN-l74IHiyY96N06-?usp=sharing" target="_blank">
           <button class="w-full bg-gray-800 text-white px-3 py-2 rounded-md text-sm font-medium hover:bg-gray-900">
             <span class="sm:inline">Master</span></button>
         </a>
diff --git a/frontend/src/shared/materials/b-first-year.ts b/frontend/src/shared/materials/b-first-year.ts
index 95b4bed..4cca972 100644
--- a/frontend/src/shared/materials/b-first-year.ts
+++ b/frontend/src/shared/materials/b-first-year.ts
@@ -8,7 +8,7 @@ const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Structuri de Date",
     "short": "SD",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1DK4n_j3TpNGh0rokVwCEbGkjoy-Hio4T?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1guVM4bTpmDSXxTiLgh2cJEOMwWj4xGY8?usp=sharing",
     "photo": "https://mir-s3-cdn-cf.behance.net/project_modules/1400_opt_1/b5277873948669.5c1ed6583b53f.jpg",
     "site": "https://profs.info.uaic.ro/~sd",
     "password": "sd SD20232024",
@@ -21,7 +21,7 @@ const FIRST_SEMESTER_CLASSES: Class[] = [
     "short": "ACSO",
     "credits": 5,
     "photo": "https://i.postimg.cc/yYf7dvCQ/1435061-609.jpg",
-    "materials": "https://drive.google.com/drive/folders/1woPYsWmt8ngxPBHFaToWtffPAjYCUUmz?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1HaqhrzA6llCJNUq7HqdZuxn-0C_n3pSK?usp=sharing",
     "site": "https://profs.info.uaic.ro/~rvlad/stud.html",
     "password": "",
     "type": ClassType.NORMAL,
@@ -32,7 +32,7 @@ const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Logica pentru Informatica",
     "short": "Logica",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1o2YrsD5BRYav1bnX6wzJZ_R7h8ykUIIr?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1bsHSUEwCrNd2y_U_XR5ZoquuNvH6cJ6D?usp=sharing",
     "photo": "https://i.postimg.cc/G3yM920Z/birmingham-museums-trust-e0w-BK0x-JXYQ-unsplash.jpg",
     "site": "https://logicincs.github.io/",
     "password": "",
@@ -44,7 +44,7 @@ const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Matematica",
     "short": "Mate",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/1dMN3PnSpg_6kt73TuXrmnIVD4ScAtQZ_?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1cfmZ9LbVWKJr1Y_uaefacwBGUn7UNcXz?usp=sharing",
     "photo": "https://i.postimg.cc/TYSwcgR3/istockphoto-536754333-612x612.jpg",
     "site": "https://sites.google.com/view/matematica2023-2024",
     "password": "",
@@ -56,7 +56,7 @@ const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Introducere in Programare",
     "short": "IP",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/18AHmlTnenaFiztbDTFjxp-80A7Q4EiDV?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1BezuUIvHkztnMTjDcCJ0gYJ2vKOF241Z?usp=sharing",
     "photo": "https://i.postimg.cc/pdQLxSKm/1-I5-Pe-It-Qbk-FDw-YGz4x-Mzw-Mg.jpg",
     "site": "https://profs.info.uaic.ro/~introp",
     "password": "",
@@ -68,7 +68,7 @@ const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Engleza",
     "short": "Engleza",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1rICdhzGFLA1TcOk5O1op1S6c8a4vdsIc?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1pyIovesgDAxD822SmpjZoYIjsKj5H-LH?usp=sharing",
     "photo": "https://i.postimg.cc/90kWJHHn/The-Bennu-Bird-Ancient-Egyptian-Symbols-Egypt-Tours-Portal.jpg",
     "site": "https://profs.info.uaic.ro/~augusto.perez",
     "password": "",
@@ -92,7 +92,7 @@ const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Pedagogie",
     "short": "Pedagogie",
     "credits": 1,
-    "materials": "https://drive.google.com/drive/folders/1nwT-A53BC68WmtQwWC-AK-XkbII2M076?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/16B6XCJRPkPkybv1d1TG-wOh-YRaUPewV?usp=sharing",
     "photo": "https://i.postimg.cc/LXCR8F58/the-art-teacher-ingrid-hyde.jpg",
     "site": "",
     "password": "",
@@ -119,7 +119,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Programare Orientata Obiect",
     "short": "OOP",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/17_4q0pymMjfcWmbxFyPu-EKwzaEKLFYY?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1zCleJlXHf2BKm10qqkE3eGqW75_3-AAW?usp=sharing",
     "photo": "https://i.postimg.cc/tgnRbHst/d730df0856fda05714d3a17dd85590e8.jpg",
     "site": "https://sites.google.com/view/fii-poo",
     "password": "",
@@ -131,7 +131,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Sisteme de Operare",
     "short": "SO",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1uEMUXv0-aKjk0Wi5muQjmShCAWgWuZpT?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/15OTn0CI7imWqXjt0NkXNuafKwMRhNEGW?usp=sharing",
     "photo": "https://i.postimg.cc/Pf2gSRxt/linux.png",
     "site": "https://profs.info.uaic.ro/~vidrascu/SO",
     "password": "so2020 1+2=3",
@@ -143,7 +143,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Fundamente Algebrice ale Informaticii",
     "short": "FAI",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/1bHyhs4yfOMTO0cYm8LIWZil82gXdGNvu?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1I36Y-f_om-Ox9BkyIyI5J5wnKw-_6d1K?usp=sharing",
     "photo": "https://i.postimg.cc/SKF3X0ZG/fai.jpg",
     "site": "https://profs.info.uaic.ro/~fltiplea/AFCS/AFCS.html",
     "password": "",
@@ -155,7 +155,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Probabilitati si Statistica",
     "short": "PS",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1JrcJrSHznvsy-zId2jgZQzjf72ofnCOs?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1wQHIvIMmtShvfJyjQMedu4XUHHs3Gedw?usp=sharing",
     "photo": "https://i.postimg.cc/85w0n7Ty/statistic.png",
     "site": "https://profs.info.uaic.ro/~adrian.zalinescu/PS.html",
     "password": "",
@@ -167,7 +167,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Proiectarea Algoritmilor",
     "short": "PA",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/18VxKHPsYKbjmgIX0S1hZT9ITSMHSps6O?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1--ilhjnmy9DD4ugCUQphiM6wYsr5f7Ds?usp=sharing",
     "photo": "https://i.postimg.cc/FRPTVwx8/45603390a097ffa44aea9204544b05b0.png",
     "site": "https://sites.google.com/site/fiicoursepa",
     "password": "",
@@ -179,7 +179,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Engleza",
     "short": "Engleza",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/19s4881EUAsy3J457GbrcD3nNvi267i0w?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/170zZbaRAVgXEqszR5YQhN5hu_AZv4FVt?usp=sharing",
     "photo": "https://i.postimg.cc/90kWJHHn/The-Bennu-Bird-Ancient-Egyptian-Symbols-Egypt-Tours-Portal.jpg",
     "site": "https://profs.info.uaic.ro/~augusto.perez",
     "password": "",
@@ -215,7 +215,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Etica si Integritate Academica",
     "short": "EIA",
     "credits": 1,
-    "materials": "https://drive.google.com/drive/folders/1XL5ONpf688jy5-5dP_8BHwBXdG7G272y?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1YlmOMSt7Xae2cIgUr2sFMNArth6AxCHo?usp=sharing",
     "photo": "https://i.postimg.cc/3xVt4qT9/Ethics-and-the-Common-Good-Abstract-vs-Experiential-1.jpg",
     "site": "",
     "password": "",
diff --git a/frontend/src/shared/materials/b-second-year.ts b/frontend/src/shared/materials/b-second-year.ts
index 12f3da2..3777f38 100644
--- a/frontend/src/shared/materials/b-second-year.ts
+++ b/frontend/src/shared/materials/b-second-year.ts
@@ -8,7 +8,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Retele de Calculatoare",
     "short": "RC",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1_sKHum0LuVfZ4mZ3wRUybR8pKrGoFbkL?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1LsoKbfnrq6HR_8J7U1D897-tZOhfcaXz?usp=sharing",
     "photo": "https://i.postimg.cc/tTHDDV7x/0-ag-Cpexq1-Yrr-TD1-V.jpg",
     "site": "https://profs.info.uaic.ro/~computernetworks/cursullaboratorul.php",
     "password": "",
@@ -20,7 +20,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Baze de Date",
     "short": "BD",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1yw8SXUyGNwbHDj-2pCptgqZQdzL4kOrw?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1U94LDwW-mBUhra77nv--AWBYXa_MYcE0?usp=sharing",
     "photo": "https://i.postimg.cc/76sX3PJv/istockphoto-1254580063-612x612.jpg",
     "site": "https://profs.info.uaic.ro/~bd/wiki/index.php/Pagina_principal%C4%83",
     "password": "student student@bd",
@@ -32,7 +32,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Limbaje Formale, Automate si Compilatoare",
     "short": "LFAC",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/1e5tSwjEcsgvDnxjLMh371xmMlL1mswNT?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/19Vq2t7oldAnwLhcckQRNbQS48nW-ZRq3?usp=sharing",
     "photo": "https://i.postimg.cc/xTSgLZc1/nightmare.jpg",
     "site": "https://profs.info.uaic.ro/~otto/lfac.html",
     "password": "",
@@ -44,7 +44,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Algoritmica Grafurilor",
     "short": "AGhe",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/1-mBqDsy6np-vHCulIopUDa9Z3jv7dgFF?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1SSPbBMtNCPBDYmhhIsm9b7ErUCu_4E0k?usp=sharing",
     "photo": "https://i.postimg.cc/NMkFSL7V/Contribution203-final-A.jpg",
     "site": "https://profs.info.uaic.ro/~olariu/curent/AG/AG_ro.html",
     "password": "",
@@ -56,7 +56,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Engleza",
     "short": "Engleza",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1bf5T-Z7owj6gLsD94KLkH6UKaY98pb8_?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1lhrFu6j2nmf8K75iESA4oUuZ8M1yN7Xk?usp=sharing",
     "photo": "https://i.postimg.cc/90kWJHHn/The-Bennu-Bird-Ancient-Egyptian-Symbols-Egypt-Tours-Portal.jpg",
     "site": "https://profs.info.uaic.ro/~augusto.perez",
     "password": "",
@@ -80,7 +80,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Principii ale Limbajelor de Programare",
     "short": "PLP",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1fjExb8G0dPT0eraPDYpCt9Rm3xuoPbfs?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1f2Gm4XZJh41Z9heiUDYkIW-HNLa0z61G?usp=sharing",
     "photo": "https://i.postimg.cc/Rh1Ycxmw/Yellowtail-Visual.jpg",
     "site": "https://profs.info.uaic.ro/~arusoaie.andrei/lectures/PLP/2020/plp.html",
     "password": "",
@@ -92,7 +92,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Algoritmi Genetici",
     "short": "AG",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1yxStmT3QLOukaysVyVyr5k_uwaaGNLGi?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1x01DY3RsVivtZMY5uN2GqC8rLFONMmH5?usp=sharing",
     "photo": "https://i.postimg.cc/Kc9B8sBW/1-siih-Fqh7-JHRel-P-2-Yy-Yq-VA.jpg",
     "site": "https://profs.info.uaic.ro/~eugennc/teaching/ga/",
     "password": "",
@@ -104,7 +104,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Quantum Computing",
     "short": "QC",
     "credits": 4,
-    "materials": "",
+    "materials": "https://drive.google.com/drive/folders/1QGXi9Hwa8tgd8PbjYV6vA39c8KKQnKkk?usp=sharing",
     "photo": "https://i.postimg.cc/HsV5c4tk/istockphoto-1211223669-612x612.jpg",
     "site": "https://profs.info.uaic.ro/~andreea.arusoaie/QC.html",
     "password": "",
@@ -155,7 +155,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Tehnologii WEB",
     "short": "TW",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1ljMVViLlknMPQU_8-3f0ZdLXBi6PFKRG?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/15U8e-o7CaWkeLIYZ5QAgpbY_75ayeFfc?usp=sharing",
     "photo": "https://i.postimg.cc/3rgwnVQR/web.jpg",
     "site": "https://profs.info.uaic.ro/~busaco/teach/courses/web/",
     "password": "",
@@ -167,7 +167,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Programare Avansata",
     "short": "PA",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/1Z0Q0Z3etNIQTj13hWkm6u0UVlXcbuhyG?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/12v6JRdIPM0oaErXhjyA329BNTZpOVeGJ?usp=sharing",
     "photo": "https://i.postimg.cc/VNxYFB7n/java.png",
     "site": "https://profs.info.uaic.ro/~acf/java/",
     "password": "",
@@ -179,7 +179,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Inginerie Software",
     "short": "IS",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1aYbEYAOF75brS-_39BFtRJJvQcVtUALQ?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1ZVzgJkEA9t6It4iVK1I9iEEKDWXXl5tU?usp=sharing",
     "photo": "https://i.postimg.cc/HxbTvcKK/ip.jpg",
     "site": "https://profs.info.uaic.ro/~adiftene/Scoala/2021/IP/index.html",
     "password": "",
@@ -191,7 +191,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Practica SGBD",
     "short": "SGBD",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1iu6ts120_w-HTloteNBILzib62Vmv5Fq?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1I9tYqRR2LVjfTRtbR98oFbi1IAtJv001?usp=sharing",
     "photo": "https://i.postimg.cc/x1dTjdJJ/dbms.jpg",
     "site": "",
     "password": "",
@@ -239,7 +239,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Antreprenoriat si Inovare in IT",
     "short": "AIIT",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/1-tGW-eONM2zKEBk5FWMQHF_F-XiHeITn?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1xgFBC9VuQzuaRQ4_sTHO5w-hS_BaBh_m?usp=sharing",
     "photo": "https://i.postimg.cc/BnwZjGHh/antreprenorship.jpg",
     "site": "",
     "password": "",
@@ -251,7 +251,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Sisteme Embedded",
     "short": "SE",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/1W5j-gahJ_5273PcGQifLaWxagYCJLoSM?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1tIkRODK2_j5R66uMCIquUNdoeblkz1gJ?usp=sharing",
     "photo": "https://i.postimg.cc/SK2S8tGm/embedded.jpg",
     "site": "",
     "password": "",
diff --git a/frontend/src/shared/materials/b-third-year.ts b/frontend/src/shared/materials/b-third-year.ts
index 58bfb97..da4eadb 100644
--- a/frontend/src/shared/materials/b-third-year.ts
+++ b/frontend/src/shared/materials/b-third-year.ts
@@ -8,7 +8,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Invatare Automata",
     "short": "ML",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/10m5VL7QbCImCdCw1ozvxhbyX9ggKJwZq?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/19kTMP37GE3r5VJVeq1nG-AMfSiXOdRsw?usp=sharing",
     "photo": "https://i.postimg.cc/pVg6XcmD/ml.jpg",
     "site": "",
     "password": "",
@@ -20,7 +20,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Securitatea Informatiei",
     "short": "SI",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/19jpMmBa8a6jyYupBueWBAK-zatJPAZd1?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1d-vgx06ERqpT0VGSP1DRZEXtl5mZq2dz?usp=sharing",
     "photo": "https://i.postimg.cc/T3c70RC9/security.jpg",
     "site": "https://www.flt-info.eu/course/isec/",
     "password": "",
@@ -32,7 +32,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Inteligenta Artificiala",
     "short": "AI",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1kNEMvePTU52dxNO4ZvP5YvnS3lehDmTN?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1Y6RoHImDje2DHIuiGlQEjTPtbpSS8Fnx?usp=sharing",
     "photo": "https://i.postimg.cc/x8bM4RYQ/ai.jpg",
     "site": "https://sites.google.com/view/iafii/home",
     "password": "",
@@ -44,7 +44,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Programare in Python",
     "short": "Python",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1sAm-UyN-2MUWpBqbqurAwTOcwZ0t63r_?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1qALVe7iwXkUucd2WMYKmdUqhm2VAs-wy?usp=sharing",
     "photo": "https://i.postimg.cc/vZy251LT/python.jpg",
     "site": "https://sites.google.com/site/fiipythonprogramming/",
     "password": "",
@@ -80,7 +80,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Retele Neuronale",
     "short": "RN",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1GFmVwSwdqABehnNF1AmC0wsG_-17IEXj?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1lqVq5dgBvX9LtcVojDCYQphvLa3iekUc?usp=sharing",
     "photo": "https://i.postimg.cc/YjKYKWqW/nn.jpg",
     "site": "https://sites.google.com/view/rbenchea/neural-networks",
     "password": "",
@@ -140,7 +140,7 @@ export const FIRST_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Programare Multiprocesor",
     "short": "TPM",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/1Sk6YoVLFLnO7RwZtX9Iy1ZzQ18aq8jq4?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/14UignT6D183m3BF1emd6iJY8KAuBdqAy?usp=sharing",
     "photo": "https://i.postimg.cc/xC8KKQ4c/multiprocessor.jpg",
     "site": "https://profs.info.uaic.ro/~eonica/mpt/index.html",
     "password": "",
@@ -179,7 +179,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Calcul Numeric",
     "short": "CN",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1BYvIAZpIi6KlGbvswFa6eL3k9CaUMvgB?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1ZId5Wa6TX81DpDEMMS-muGHoNzpghCGL?usp=sharing",
     "photo": "https://i.postimg.cc/7ZdHbLRH/numerical-calculus.jpg",
     "site": "https://profs.info.uaic.ro/~ancai/CN/",
     "password": "",
@@ -191,7 +191,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Grafica pe Calculator",
     "short": "Grafica",
     "credits": 4,
-    "materials": "https://drive.google.com/drive/folders/1mkz_mC5DYI5yLjWqw9K3kf546lo5l5L7?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/10zIxbCPh21WEJxiLJ_ctoSr5ubSQ4TEa?usp=sharing",
     "photo": "https://i.postimg.cc/R0tMtBrc/computer-graphics.jpg",
     "site": "https://profs.info.uaic.ro/~ghirvu/gpc/",
     "password": "",
@@ -227,7 +227,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Tehnici de Programare pe Platforme Mobile",
     "short": "Flutter",
     "credits": 5,
-    "materials": "https://drive.google.com/drive/folders/16qu3Zf9bwdpYHcXPdC9BUUZ0r-AvPGdl?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1fllrloAp2rxEwWp_JZ1zCg6VeFiDZoFe?usp=sharing",
     "photo": "https://i.postimg.cc/xCYSbN32/mobile.png",
     "site": "https://sites.google.com/view/fiiflutterdev",
     "password": "",
@@ -275,7 +275,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Cloud Computing",
     "short": "Cloud",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1Pj3PuXaA75SZPv0j-3_Ltm_bPu6wepvu?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1GREkAUMjYm7BpHOlCjXdaf_86JhUUsxk?usp=sharing",
     "photo": "https://i.postimg.cc/50KWbtYJ/cloud-computing.jpg",
     "site": "https://profs.info.uaic.ro/~adria/teach/courses/CloudComputing/",
     "password": "",
@@ -335,7 +335,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "nameRo": "Ingineria Software Specifica Automobilelor",
     "short": "ISSA",
     "credits": 6,
-    "materials": "https://drive.google.com/drive/folders/1Vjqkq12cC-DxGqYQ-nva9_YVNisiAy1z?usp=sharing",
+    "materials": "https://drive.google.com/drive/folders/1cl5qS5JtF9WpAlIg-x2ugJW2rKtHnOJO?usp=sharing",
     "photo": "https://i.postimg.cc/8Px96rT0/issa.jpg",
     "site": "https://profs.info.uaic.ro/~conti/",
     "password": "",
@@ -343,6 +343,18 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
   },
   {
     "count": 15,
+    "name": "Introduction to Internet of Things",
+    "nameRo": "Introducere in IOT",
+    "short": "IOT",
+    "credits": 6,
+    "materials": "https://drive.google.com/drive/folders/13yEiuxmHa4TxEhRLNil7JB4IV5T3ok04?usp=sharing",
+    "photo": "https://i.postimg.cc/J0sYSxV2/iot.jpg",
+    "site": "",
+    "password": "",
+    "type": ClassType.OPTIONAL_3,
+  },
+  {
+    "count": 16,
     "name": "Modeling of Digital Systems",
     "nameRo": "Modelarea Sistemelor Digitale",
     "short": "MSD",
@@ -354,7 +366,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "type": ClassType.OPTIONAL_3,
   },
   {
-    "count": 16,
+    "count": 17,
     "name": "Special Topics on .NET programming",
     "nameRo": "Topici Speciale de Programare .NET",
     "short": ".NET",
@@ -366,7 +378,7 @@ const SECOND_SEMESTER_CLASSES: Class[] = [
     "type": ClassType.OPTIONAL_3,
   },
   {
-    "count": 17,
+    "count": 18,
     "name": "Competitive Programming",
     "nameRo": "Programare Competitiva",
     "short": "PC",