Hi5

Almayer Community Manager (NO ENG)

Almayer is a fully featured community manager. With Almayer you can share your photos, video, audio, give titles or notes to any media or user, mantain your own list of friends, obtain statistics or charts, mantain a blog, send postcard and so on…

http://sourceforge.net/projects/almayer/
Free
http://i.imgur.com/7TvqU9M.png
Online Community Site

i-Net Online Community site php script is an online social networking software that allows you to start your own site just like Myspace, Hi5 and Facebook. This community script allow members to connect people in their personal networks and people can create a new online interactive resource that is based on a trusted network of friends and associates on the internet.

http://i-netsolution.com/onlinecommunity.html
Free
http://i.imgur.com/7TvqU9M.png
OzCode

Ozcode is the source code behind Ozmozr.com, a microformat-aware RSS aggregator, social networking, resource sharing, identity aggregation and presentation site.Ozcode is the source code behind Ozmozr.com, a microformat-aware RSS aggregator, social networking, resource sharing, identity aggregation and presentation site.

http://sourceforge.net/projects/ozcode/
Free
http://i.imgur.com/7TvqU9M.png