diff --git a/Installation.md b/Installation.md
index 285f466..e7e1fe0 100644
--- a/Installation.md
+++ b/Installation.md
@@ -10,7 +10,7 @@
 <img style="padding: 10px 10px 20px 10px; float: left" src="/trac/chrome/ubuntu.png" />
 <h2 style="margin-bottom: 0px;">Ubuntu <small style="color:grey;">lucid, maverick, natty, oneiric</small></h2>
 <a href="<http://packages.ubuntu.com/search?keywords=tahoe-lafs&searchon=names&suite=all&section=all>">Official Packages</a>
-<a href="//buildbot/builders/lucid-amd64">Buildbot</a><br />
+<a href="/buildbot/builders/lucid-amd64">Buildbot</a><br />
 <pre style="display: inline-block; font-family: 'Menlo','Courier',monospace; padding: 5px; background: #ffffdd;"># apt-get install tahoe-lafs</pre>
 </div>
 
@@ -18,7 +18,7 @@
 <img style="padding: 10px 10px 20px 10px; float: left" src="/trac/chrome/debian.png" />
 <h2 style="margin-bottom: 0px;">Debian <small style="color:grey;">sid (unstable), wheezy (testing)</small></h2>
 <a href="<http://packages.debian.org/search?keywords=tahoe-lafs&searchon=names&suite=all&section=all>">Official Packages</a>
-<a href="//buildbot/builders/Eugen%20lenny-amd64">Buildbot</a><br />
+<a href="/buildbot/builders/Eugen%20lenny-amd64">Buildbot</a><br />
 <pre style="display: inline-block; font-family: 'Menlo','Courier',monospace; padding: 5px; background: #ffffdd;"># apt-get install tahoe-lafs</pre>
 </div>
 
@@ -68,7 +68,7 @@
 <img style="padding: 10px 10px 20px 10px; float: left" src="/trac/chrome/netbsd.png" />
 <h2 style="margin-bottom: 0px;">NetBSD</h2>
 <a href="ftp://ftp.netbsd.org/pub/pkgsrc/current/pkgsrc/filesystems/tahoe-lafs/README.html">Official Packages</a>
-<a href="//buildbot/builders/MM%20netbsd5%20i386%20warp">Buildbot</a><br />
+<a href="/buildbot/builders/MM%20netbsd5%20i386%20warp">Buildbot</a><br />
 <pre style="display: inline-block; font-family: 'Menlo','Courier',monospace; padding: 5px; background: #ffffdd;"># pkg_add tahoe-lafs</pre> 
 </div>
 
@@ -77,7 +77,7 @@
 
 <h1>Sources</h1>
 <a href="/source/tahoe-lafs/releases/allmydata-tahoe-1.9.1.zip">Tahoe-LAFS 1.9.1 source code zip</a> 
-(<a href="//source/tahoe-lafs/releases/">older versions</a>)
+(<a href="/source/tahoe-lafs/releases/">older versions</a>)
 
 <h2>Darcs</h2>
 <pre>darcs get --lazy <https://tahoe-lafs.org/source/tahoe-lafs/trunk> tahoe-lafs</pre>