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Social network lets people with same gut flora hook up

Jamie Condliffe, contributor

(Image: Nisian Hughes/the Image Bank/Getty)

There's yet another social network on the internet - but this one pairs users up with people who share the same intestinal bacteria.

The new site, MyMicrobes, has been set up by researchers from the European Molecular Biology Laboratory in Heidelberg, Germany, and aims to bring together individuals with the same gut flora so that they can share questions and concerns about their digestive health. As you might imagine, it looks set to be a rather niche network - and one that requires a little more than the usual email address and password to join.

After registering on the site, individuals are shipped a package of information and a stool-sample kit. It's then just a matter of providing the sample by post - along with $2,100 to cover the cost of having your gut bacteria sequenced - and you're a member. The site offers its users a way to meet people with similar gastrointestinal complaints, and provides a forum for sharing diet tips and digestive anecdotes with one another - remember, we did say it was niche. In exchange for providing users with the ability to share their - quite literally - innermost thoughts, the researchers will gather a wealth of data about the bacteria that live in peoples' guts.

The project was kick-started by a huge public response to the team's research into the genetics of gut bacteria. In a previous study the researchers found that certain gut-specific genetic markers were related to obesity and other diseases. "I got between 50 and 100 e-mails from regular people having problems with the stomach or diarrhoea and wondering if we can help them," Peer Bork, a biochemist and co-creator of MyMicrobes, told Nature. This new website will build on that work, whilst also providing support for concerned members of the public.

So far, around 120 people have registered their interest in the project - but not all of them have yet returned a sample, perhaps put off by the substantial price tag. Bork aired a note of caution when he spoke to Nature, saying "It requires a critical number of participants. Just like competitors of Facebook, we might fail to get that critical mass."

Let's just hope none of their critical mass gets lost in the post.

Twitter board loses two power players

SAN FRANCISCO (CNNMoney) -- Three behind-the-scenes power players have left Twitter, the latest in a series of departures that are reshaping the micro-messaging site.

Board members Fred Wilson and Bijan Sabet, two of Twitter's earliest investors, are stepping down, the company said Friday. On Thursday, Twitter Chief Scientist Abdur Chowdhury confirmed that he is leaving the company.

"Bijan Sabet and Fred Wilson both played important and greatly appreciated roles in our success," Twitter said in a written statement. "Both saw what Twitter could become before most anyone else. We look forward to their continued input as both investors in the company and passionate users of the product."

Twitter recently completed a massive $800 million funding round, half of which went to cash out part of the holdings of some early investors, including Wilson's firm, Union Square Ventures. USV kept some of its stake in Twitter.

Twitter's $400 million war chest will help the five-year-old company tackle a problem of growing urgency: Building a sustainable business on top of its widely used, free platform. In a "State of the Union" talk last week, CEO Dick Costolo publicized the latest Twitter stats: 100 million active users log in at least once a month.

Costolo took over in October as the company's CEO, assuming the reins from co-founder Evan Williams, who planned to step back and focus on product development. But just a few months later, Williams ceded that role to once-exiled co-founder Jack Dorsey, who now juggles his Twitter duties with his CEO role at payments venture Square.

Williams and Twitter's third co-founder, Biz Stone, have faded away from active involvement at Twitter. In June, they launched a new venture: Obvious Corp., an incubator for companies focused on "building systems that help people work together to improve their lives and the world."