freshmeat maintains the Web's largest index of Unix and cross-platform open source software. Thousands of applications are meticulously cataloged in the freshmeat database, and links to new code are added daily.
Used to be a 5star site, but desperately needs comment moderation & a method for warning users of unwanted add-ons etc. Comments/reviews are absolutely filled with a majority of fake, cookie-cutter reviews now. I don't understand the purpose of some of them, but it's obvious a lot of them are there to boost ratings for some software. Not cool.