Noosfero is a web platform for social networks with blog, e-Porfolios, RSS, thematic discussion and events agenda in the same system! Get to know, use it, participate and contribute to this free software project!

Box Social is a piece of Open Source Social Networking software written in C# for the Mono .net framework platform. The project exists to develop the software that powers ZinZam, but can be freely used by anyone. In fact you are using it right now. Box Social doesn't currently make formal releases, but there is an SVN repository online that you can download the current state of the software from.

 

 

A social networking platform, funded by Paul Graham's Y Combinator investment firm, that aims to be the "MySQL of social networking platforms: free for hackers, with a commercial product for businesses." The project lead is Michael Hartl, author of the book, "RailsSpace."

The open source social networking platform in Ruby on Rails from the author of RailsSpace

Prologue Pro is Prologue but with a twist. It has over 20 possible theme combinations, features personal customization in the Wordpress backend, makes use of great transparency techniques and best of all

Create your own popular story sharing website like, Twitter clone script 43thing sclone script or Jaiku clone script.

 

"Micro-Blogging" SCRIPT. Twitter.com, Micro-blogging is the best and most simple solution to answering the everyday question, "What are you doing?"...

 

 

ReVou Micro Blogging is a revolutionary PHP software that allows you to start your Twitter clone site. ReVou offers you the next generation social networking and mobile blogging solution for your users...