diff --git a/index.html b/index.html
index ec83db4..301a8c8 100644
--- a/index.html
+++ b/index.html
@@ -81,28 +81,28 @@ published: true
           <a href="https://github.com/manuelroth">
             <div class="circular" style="background-image: url(/img/profile-pictures/manuelroth.jpg)"></div>
           </a>
-            <h3>Manuel Roth</h3>
-            <p>Student at HSR</p>
+          <a href="https://github.com/manuelroth"><h3>Manuel Roth</h3></a>
+            <p>CS Student at HSR</p>
         </div>
         <div class="contributor-profile col3 padb-3">
           <a href="http://lukasmartinelli.ch/">
             <div class="circular" style="background-image: url(/img/profile-pictures/lukasmartinelli.jpg)"></div>
           </a>
-            <h3>Lukas Martinelli</h3>
-            <p>Student at HSR</p>
+            <a href="http://lukasmartinelli.ch/"><h3>Lukas Martinelli</h3></a>
+            <p>CS Student at HSR</p>
         </div>
         <div class="contributor-profile col3 padb-3">
           <a href="https://www.klokantech.com/company/">
             <div class="circular" style="background-image: url(/img/profile-pictures/petrpridal.jpg)"></div>
           </a>
-            <h3>Petr Pridal</h3>
+            <a href="http://www.klokantech.com"><h3>Petr Pridal, PhD</h3></a>
             <p>CEO <a href="http://www.klokantech.com">Klokan Technologies</a></p>
         </div>
         <div class="contributor-profile col3 padb-3">
           <a href="http://wiki.hsr.ch/StefanKeller/wiki.cgi?StefanKeller">
             <div class="circular" style="background-image: url(/img/profile-pictures/stefankeller.png)"></div>
           </a>
-          <h3>Prof. Stefan Keller</h3>
+          <a href="http://wiki.hsr.ch/StefanKeller/wiki.cgi?StefanKeller"><h3>Prof. Stefan Keller</h3></a>
           <p>Professor for GIS at <a href="http://hsr.ch/geometalab">HSR</a></p>
         </div>
       </div>