Social networking

Hey everyone,

I am looking for a plugin I that was briefly promoted in the Plugin section of my WP Dashboard. It was a plug that would transform a WP install into a full fledged social networking site, but it is NOT buddypress. It had a name like Synchronicity or something like that. I can’t find it now and I want to set up a test site yo give it a kind of test drive.

Does anyone know what plugin it might be?

Thanks!