I'm looking for an open source social networking platform that I can integrate with wordpress. I'm building a site that will need wordpress for it's blogging abilities but I would like to be able to add a social networking aspect so that people can befriend one another, use forums, write on walls, share photos, etc.
I've looked into Lovd By Less and Elgg as solutions and I would have no problem installing and running them. However I'm looking for a simple solution to integrating them so that a user would go to one place to sign-in, rather have one session/username/password for both systems. Any help would be greatly appreciated.