Just released a simple web tool, GitStars (http://www.gitstars.com) to help make the act of starring repositories on GitHub infinitely more useful.

When you log into GitStars, your starred GitHub repositories are fetched and automatically tagged. You can freely edit the tags and help make the system's auto tagging better for everyone.

In this early version, we were focused on helping you re-discover the repositories that you may have starred and lost track of. You can browse or search the repositories by the tags that were automatically generated.

I would love to hear your comment on whether you find GitStars useful.