Want to start a social network website by your own? (1)
Do not start from a scratch without a particular reason
These are open sources projects, which can help you to build your own social network sites.
BuddyPress is a continuous work of WordPress MU, the very famous WordPress multiple user blog tool. It is first released in May 2009. BuddyPress focus on very specific use, for example, school, company, or a social group. If you want to know who is using it. You can visit this page. BuddyPress is built based on PHP.
(2) Love by Less
Love by less is based on Ruby on Rails. It supports user-to-user message, photo gallery, flickr and YouTube integration. The goal of this open source project is to simplify things. It is simple to use, but recently the update of of it becomes relatively slower than other open source projects.
(3) Secret App
Secret App is the back end of secret london. It is built based on Python. It has very modern looking and functionality. Highly recommended for the small startup company.
(4) Community Engine
Community engine is built based on Ruby on Rails. It powers the websites, curbly, tennismetro, weebabystuff. Community engine supports various features. It is good for the very specific social function sites, for example, sport, art project, and computer review…
Insoshi is built based on Ruby on Rails. It offers similar but simpler functions compared with the community engine.
Build based on PHP, Pligg has supported wide range of social websites. It has large user base.