In addition to its most readily recognized function as an internet search engine, Google also generates considerable revenue from advertising on its free-to-user email service, social networking facilities, video-sharing services and online mapping. Recent innovations from Google include a mobile phone operating system and open source web browser.
In 2008, Google’s total assets were valued at US$31.768 billion, with close to 20,000 employees on its payroll. The multi-billion dollar corporation has acquired key assets during its decade-long history, including Keyhole in 2004, the developer of a product which evolved into Google Earth. YouTube was acquired in late 2006 with the acquisition of JotSpot following soon after. In 2007, Google bought DoubleClick for a reported US$3.1 billion, and went on to acquire GrandCentral and Postini later that same year. The year 2009 saw Google purchase On2Technologies and Teracent.
Google has entered into a diverse range of partnerships since 2005 which has further strengthened its position in the tech sector. These include partnering with the NASA Ames Research Center to facilitate research into fascinating fields such as nanotechnology abd distributed computing. Other partnerships and investments include collaborating with Sun Microsystems, AOL, Microsoft, Nokia, Ericsson and MySpace. The product range offered by Google is extensive and innovative, while placing emphasis on its social responsibility.