Facebook
Facebook is a social networking website that is operated and privately owned by Facebook, Inc. Since September 2006, anyone over the age of 13 with a valid e-mail address (and not residing in one of the countries where it is banned) can become a Facebook user.
MySpace
MySpace is a social networking website. Its headquarters are in Beverly Hills, California, US where it shares an office building with its immediate owner, News Corp. Digital Media, owned by News Corporation.
Google Docs
Google Docs is a free, Web-based word processor, spreadsheet, presentation, form, and data storage service offered by Google. It allows users to create and edit documents online while collaborating in real-time with other people. Google Docs combines the features of Writely and Spreadsheets with a presentation program incorporating technology designed by Tonic Systems. Data storage of any files up to 1GB each in size was introduced on January 13, 2010.