jcow sns

jcow sns is an  Social Networking CMS  Built on php

Jcow Built-in Modules

These modules are free to use.

1. Activity Streams.
2. Friendship: add/pending/approve friends.
3. Notifications.
4. Private Message, Inbox/SentBox.
5. Events: Create/Join events.
6. Photo uploading, Photo albums.
7. Blogs.
8. Videos.
9. Site search.

http://jcow.net/