
The social networking site, which has 300m users and has been valued at up to £6bn, is making enough money to cover its costs earlier than expected. It had projected that it would start to break even in 2010.
The site launched a revamped search engine last month and is trialling an online payment system.
Facebook's income is likely to grow 70% this year and the number of users has trebled over the past 12 months.