Google releases Code Search sitemaps

Google's Code Search helps users find function definitions and sample code by enabling them to search publicly accessible source code hosted on the Internet. You can tell Google about source code on your site by creating and submitting a Code Search Sitemap. A Code Search Sitemap is just like a regular Sitemap, and is submitted in the same way, but it does include some additional, Code Search-specific information.

Link:
http://www.google.com/support/webmasters/...