Give it a try:
http://opensource.ankerl.com/
Thanks to Google’s new co-op feature I was able to create a customized search engine for open source software. It contains a lot of hosting sites like sourceforge.net and rubyforge.org, but also lots of other sites like eclipse.org, kernel.org, apache.org and many many more.
Click 
to add it to your customized Google homepage
thanks for the excellent gadget! I use it every day!
can you please provide a list of all the sites included in this custom search.
also, it would be nice to have a cygwin menu in the OS list.