SourceForge is holding their Community Choice Awards again this year and they've opened it up so that you can nominate your favorite project, PHP or not, to be considered for an award.
The awards program allows the community to recognize open source software projects that are built with the highest quality, creativity and ingenuity. [...] Nominations will be accepted until May 29th, and the ten projects with the most nominations in each category will become finalists. The winners will be announced at a party, held at the Agenda Lounge in San Jose, CA, starting at 6:00 pm PT on the night of July 23rd, during the week of OSCON.
PHP-related nominations include the web2project web-based project management solution and the Symfony framework (in a few different categories).