Useful list from TechCrunch.

Hmmm… I wonder how reliable these are…

They’re billed as “extrapolations”, which is not encouraging. Still, for what they’re worth, here they are:

Sex
6,407,580 people in the UK
2,320,200 are male
2,789,540 are female

Age
3,241,800 men between 18 and 25
1,565,520 women between 18 and 25
907,620 men between 25 and 35
1,006,420 women between 25 and 35
227,220 men and women between 35 and 60

Professional vs student
5,160,740 who are not students
295,260 are in High School
447,820 are in college
503,760 Alumni

Damien Mulley’s done the same thing for Irish users of Facebook.

Thanks to Rory Cellan-Jones for the original link.

Interesting insight on social networking, by Chris Anderson:

Right now the world is focused on stand-alone social networking sites, especially Facebook and MySpace, and the fad of the moment is to take brands and services there, as companies build Facebook apps and MySpace pages in a bid to follow the audience wherever they happen to be. But at the same time there’s a growing sense that elements of social networking is something all good sites should have, not just dedicated social networks. And that suggests a very different strategy–social networking as a feature, not a destination…

According to today’s New York Times,

Some people laughed at Mark E. Zuckerberg when he reportedly turned down a $900 million offer last year for Facebook, the social networking Web site he founded three and a half years ago.

But Microsoft, Google and several funds are considering investments in the fast-growing site, according to people with knowledge of the talks, that could give the start-up a value of more than $10 billion.

While discussions were still in the early stage, these people said that Microsoft was considering an investment of $300 million to $500 million for a 5 percent stake of the company. Google is also said to be interested in an investment.

Facebook’s valuation could go even higher as the two rivals create the kind of competitive bidding situation that has recently driven the acquisition prices of other start-ups into the stratosphere.

Representatives from Facebook, Microsoft and Google all declined to comment on the talks.

Er, that’s $10 billion for an outfit that, according to one analyst quoted in the Times story, brought in $60 million to $96 million in annual revenue, with no real profit.

Later: It’s interesting to see the rationalisations being offered for this valuation — and why Microsoft and Google might want Facebook. Here’s one for example:

“There’s a lot of strategic value beyond the pure financial value in an investment like this,” said Jeremy Liew of Lightspeed Venture Partners, who closely watches Web investments. Liew, a former executive at AOL, said social networks like Facebook and MySpace are encroaching on the turf of portals like Microsoft’s MSN to serve as users’ home page.

“There’s not a lot of a zero-sum games, but there’s only one home page,” Liew said. “There’s only one thing that is the first thing you see” when signing on to the Internet. “That’s what I think is the strategic value, and I think Microsoft needs it more than Google.”