Yahoo has accused Facebook of buying up patents specifically to launch a counterclaim to the legal case it is bringing against the social networking site.
With Facebook due to float on 17 May, we take a look at some of the most famous tech flotations - but not all of them were successful.
Why is the online collective featured on Time's list of 100 most influential people in the world?
Social networking giant, which claims 800 million members, also planning to expand California headquarters and workforce.
Time magazine readers choose Anonymous hacking collective as most influential figure of 2012.
We investigate why the social network paid so much of a mobile phone app.
Social networking site will pay $1bn in cash and Facebook shares to take over photo-sharing service.
Paul Celiga claimed in his 2010 lawsuit that he had signed a deal with Zuckerberg for half ownership of the company.
Nepal's only openly gay MP writes to Mark Zuckerberg for changes in gender registration.
Employers use Facebook passwords to perform background checks on potential employees.
Yahoo files lawsuit claiming patent breaches on social networking, online advertising and security.
Forbes magazine released the list of youngest billionaires in the world on Wednesday.
Currently, Facebook has only the social networking platform in its portfolio. It lacks a physical commodity such as smartphones or tablets to compete with technology giants like Google and Apple.
Facebook, the world's most popular social networking site, marked its eigth anniversary, on Saturday, Feb. 4.
Mark Zuckerberg is the youngest and richest founder of Facebook, whose shares enable him to surpass the net asset value of existing Google co-founders and also compete against the likes of business tycoon Larry Ellison's Oracle.
The Facebook IPO is billed as the biggest IT offering even eclipsing Google's in 2004.
The Facebook IPO (Initial Public Offering) has generated a lot of hype and buzz. But various Republican Legislators and financial analysts have raised concerns. Some of them do not sound all that positive, hinting that the stock value might recede to unexpected lows after some initial gains.
Zuckerberg has included a letter explaining the circumstances of the creation of the company, its mission and the culture and management policy at Facebook.
US investment bank humiliated as Facebook chooses rival bank to lead Initial Public Offering on stock market.
Facebook filed an IPO (Initial Public Offering) with the U.S. Securities and Exchange Commission on Wednesday to raise $5 billion funds, the largest acquisition ever filed for a technology IPO.
Facebook submits $5bn initial public offering but founder and majority shareholder accepts tiny pay packet.
Facebook has introduced the Timeline Movie Maker! You can now create your own films, using the Facebook Timeline to highlight popular posts and photographs.