A Good cheap/free social networking platform?

Hey peeps,

just wondering if you all know of any good cheap/free social networking platforms. Preferably in php.

I have a list which i minimized down to five, what’s your opions/thoughts??

  • Boonex | Dolphin | Shark (when it comes out next year)
  • Converdge
  • Dzoic | Handshake Professional
  • Webligo | Social Engine
  • PHP Fox | Konsort

Hope to hear back soon :smiley:
Thanks in advance!