Facebook has tens of millions of users worldwide, is worth billions of dollars and, if internet sources are to be believed, was started by the CIA.
The social networking phenomenon started as a way of American college students to keep in touch. It is rapidly catching up with MySpace, and has left others like Bebo in its wake.
But there is a dark side to the success story that's been spreading across the blogosphere. A complex but riveting Big Brother-type conspiracy theory which links Facebook to the CIA and the US Department of Defence.
The CIA is, though, using a Facebook group to recruit staff for its very sexy sounding National Clandestine Service.
Checking out the job ads
does require a Facebook login, so if you haven't joined the site - or are worried that CIA spooks will start following you home from work -check them out on the agency's own site.
Facebook's first round of venture capital funding ($US500,000) came from former Paypal CEO Peter Thiel. Author of anti-multicultural tome 'The Diversity Myth', he is also on the board of radical conservative group VanguardPAC.
The second round of funding into Facebook ($US12.7 million) came from venture capital firm Accel Partners. Its manager James Breyer was formerly chairman of the National Venture Capital Association, and served on the board with Gilman Louie, CEO of In-Q-Tel, a venture capital firm established by the Central Intelligence Agency in 1999. One of the company's key areas of expertise are in "data mining technologies".
Breyer also served on the board of R&D firm BBN Technologies, which was one of those companies responsible for the rise of the internet.
Dr Anita Jones joined the firm, which included Gilman Louie. She had also served on the In-Q-Tel's board, and had been director of Defence Research and Engineering for the US Department of Defence.
She was also an adviser to the Secretary of Defence and overseeing the Defence Advanced Research Projects Agency (DARPA), which is responsible for high-tech, high-end development.
It was when a journalist lifted the lid on the DARPA's
Information Awareness Office that the public began to show concern at its information mining projects.
Wikipedia's IAO page says: "the IAO has the stated mission to gather as much information as possible about everyone, in a centralised location, for easy perusal by the United States government, including (though not limited to) internet activity, credit card purchase histories, airline ticket purchases, car rentals, medical records, educational transcripts, driver's licenses, utility bills, tax returns, and any other available data.".
Not surprisingly, the backlash from civil libertarians led to a Congressional investigation into DARPA's activity, the Information Awareness Office lost its funding.
Now the internet conspiracy theorists are citing Facebook as the IAO's new mask.
Parts of the IAO's technology round-up included 'human network analysis and behaviour model building engines', which Facebook's massive volume of neatly-targeted data gathering allows for.
Is the CIA really providing the impetus and the funding behind the monster growth of this year's biggest dot com success story? Maybe only the men with the nice suits and ear pieces can answer that.