Winamp is going end-of-life by 2013-12-20. Quoting this page:

Winamp.com and associated web services will no longer be available past December 20, 2013. Additionally, Winamp Media players will no longer be available for download. Please download the latest version before that date. See release notes for latest improvements to this last release. Thanks for supporting the Winamp community for over 15 years.

Now someone brought this petition to my attention:

AOL: Keep Winamp alive or let it go open source

Please consider signing the petition, too. Thanks!