Have any of you checked this out yet? They are positioning themselves to be "Anti-Facebook". (I know, I know... Anyone remembers Diaspora?) They are currently invitation only, like those early days of Gmail - and someone reported that invitations are being sold on eBay for $100!! Amongst its users, there are some concerns about its lack of privacy controls and security, but apparently those features would be added in time.
cc +Sourabh Banerjee
, who brought me to Twitter, and if I remember correctly, nudged me towards Facebook; +Qbradley Witover
, who helped me sign up for my first ever Gmail account.