There is lot of speculation about the Initial Public Offering (IPO) of Facebook, the largest social networking site in the world. According to a Wall Street Journal report, the company, with more than 800 millions users, is planning to launch its IPO somewhere between April and June this year. The company plans to raise $10 billion through the IPO.

Things have changed for the company faster and for the better. What began as Facemash, the predecessor to Facebook on the Harvard University campus, to connect with fellow university students in 2003 is now the largest social networking site. Facebook is also one of the most talked about company- its platform is used for running political campaigns, selling products, creating brand image and generating ideas.

It is also reported that a Facebook IPO would generate revenues for California, where its headquarters are based. The cash is much needed for the state government which has a deficit of a $9.2 billion.

Facebook has also been voted as the best tech company to work for in 2012, in a Glassdoor survey.

"Working at Facebook means that you are working in a very deeply entrepreneurial environment and culture and that you come to Facebook with a love for building things," Mashable has quoted Lori Gohler, Facebook VP of HR and Recruiting, as saying.

"It's very much results focused, impact focused. We really want to create an environment where people have a lot of room for creativity and innovation in their thinking."

Facebook's new office has about 2,000 employees and is constantly working to add productivity and something new on the creative front. The office is unique with no private space.

Here are some of the pictures of the company's newly acquired headquarters in the 55-acre Menlo Park in California. The space was earlier occupied by Sun Microsystems.