BuddyPress helps you run any kind of social network on your WordPress, with member profiles, activity streams, user groups, messaging, and more.
Activity Streams - Global, personal, and group activity streams with threaded commenting, direct posting, favoriting and @mentions. All with full RSS feeds and email notification support.
Extended Profiles - Fully editable profile fields allow you to define the fields users can fill in to describe themselves. Tailor profile fields to suit your audience.
User Settings - Give your users complete control over profile and notification settings. Settings are fully integrated into your theme, and can be disabled by the administrator.
Extensible Groups - Powerful public, private or hidden groups allow your users to break the discussion down into specific topics. Extend groups with your own custom features using the group extension API.
Friend Connections - Let your users make connections so they can track the activity of others, or filter to show only those users they care about the most.
Private Messaging - Private messaging will allow your users to talk to each other directly and in private. Not just limited to one-on-one discussions, your users can send messages to multiple recipients.
Site Tracking - Track posts and comments in the activity stream, and allow your users to add their own blogs using WordPress' Multisite feature.
Notifications - Keep your members up-to-date with relevant activity via toolbar and email notifications.