diff --git a/talk/tools/vcs.tex b/talk/tools/vcs.tex
index 47b1afdd..146ee0a9 100644
--- a/talk/tools/vcs.tex
+++ b/talk/tools/vcs.tex
@@ -17,11 +17,11 @@
     \item[\href{http://mercurial.selenic.com/}{\beamergotobutton{mercurial}}]
       The alternative to git
     \item[\href{http://bazaar.canonical.com/en/}{\beamergotobutton{Bazaar}}]
-      another alternative
-    \item[svn]
-      historical, not distributed - DO NOT USE
-    \item[CVS]
-      archeological, not distributed - DO NOT USE
+      Another alternative
+    \item[\href{https://subversion.apache.org/}{\beamergotobutton{Subversion}}]
+      Historical, not distributed - don't use
+    \item[\href{https://cvs.nongnu.org/}{\beamergotobutton{CVS}}]
+      Archeological, not distributed - don't use
     \end{description}
   \end{block}
 \end{frame}