BuddyPress, part of the WordPress eco-system.

More on BuddyPress.

Download this post to watch the video, if you read this in a feed reader (such as Google Reader).

–

–

Possible users of BuddyPress:

– BetFair – TradeFair

– InTrade – TradeSports

– HedgeStreet

– Betdaq

– Hollywood Stock Exchange – Cantor Exchange

– HubDub

– NewsFutures

– Inkling Markets

– etc.

–