diff -r 25603efa57b5 -r 7c0909052511 app/views/projects/explore.html.erb
--- a/app/views/projects/explore.html.erb
+++ b/app/views/projects/explore.html.erb
@@ -11,7 +11,7 @@
 <h2><%= l(:label_explore_projects) %></h2>
 
 <div class="threecolumnleft">
-<% cache(:action => 'explore', :action_suffix => 'tags', :expires_in => 1.hour) do %>
+<% cache(:action => 'explore', :action_suffix => 'tags') do %>
   <div class="tags box">
   <h3><%=l(:label_project_tags_all)%></h3>
     <%= render :partial => 'projects/tagcloud' %>
@@ -28,7 +28,7 @@
 </div>
 
 <div class="threecolumnleft">
-  <% cache(:action => 'explore', :action_suffix => 'busy_institutions', :expires_in => 1.hour) do %>
+  <% cache(:action => 'explore', :action_suffix => 'busy_institutions') do %>
   <div class="institutions box">
   <h3><%=l(:label_institutions_busy)%></h3>
     <%= render :partial => 'activities/busy_institution' %>
@@ -38,7 +38,7 @@
 </div>
 
 <div class="threecolumnmid">
-  <% cache(:action => 'explore', :action_suffix => 'busy_projects', :expires_in => 1.hour) do %>
+  <% cache(:action => 'explore', :action_suffix => 'busy_projects') do %>
   <div class="projects box">
   <h3><%=l(:label_projects_busy)%></h3>
     <%= render :partial => 'activities/busy' %>