Orkut is a social networking website that is owned and operated by Google Inc. The service is designed to help users meet new and old friends and maintain existing relationships. The website is named after its creator, Google employee Orkut Büyükkökten. Although Orkut is less popular in the United States than competitors Facebook and MySpace, it is one of the most visited websites in India and Brazil. As of October 2011, 59.1% of Orkut's users are from Brazil, followed by India with 27.1% and Japan with 6.7%.

pH7 Social Dating CMS
"pH7 Social Dating CMS" is a new and original PHP Dating software. With this great open source software you can create your own dating service or social networking website. It includes a variety of modules as Affiliate, Hot or Not, Chat rooms, Forums, Chatroulette, Instant messaging, Advanced...
Light Portal
Ajax and Java based Portal Server. Supports JSR 168 Portlet API programming model. Contains multiple pre-built themes and UI window appearances. Plus over 50 portlets pre-bundled. Supports Mobile browser. Includes Android Mobile App.