diff --git a/VisualStudio.gitignore b/VisualStudio.gitignore
index 19a3d7bd..79c254dd 100644
--- a/VisualStudio.gitignore
+++ b/VisualStudio.gitignore
@@ -183,7 +183,7 @@ UpgradeLog*.htm
 # Microsoft Fakes
 FakesAssemblies/
 
-# Visual Studio 6 build log
+# Visual Studio 6 build log: http://msdn.microsoft.com/en-us/library/aa260829(v=vs.60).aspx
 **/*.plg
-# Visual Studio 6 workspace options file
+# Visual Studio 6 workspace options file: http://msdn.microsoft.com/en-us/library/aa239568(v=vs.60).aspx
 *.opt