SiliconBeat

With millions of users and more joining every second, LinkedIn has become a data nerd’s delight. And it allows for intriguing experiments like the one recently conducted by Monica Rogati, LinkedIn’ senior data scientist.

Rogati was curious: What could that rich set of data tell her about the factors that go into making an entrepreneur? Or, as she put it in a study released today, “Sequencing the Startup DNA.”

If there was a big surprise for her, it was this:

“Geography matters, even if you like to think it doesn’t,” Rogati said. “Even if you like to think starting a company is democratic and the world is flat.”

Rogati basically took about 10,000 profiles of people who had started companies in some fashion. Interesting to note that only about 2 percent of those people go on to start another company, becoming so-called serial entrepreneurs.

But looking at geography, the most likely place someone will start a company is San Francisco. Indeed, someone is twice as likely to start a company in SF as they are in New York. And in turn, they are twice as likely to start a company in NY as they are in Boston.

The data on age is also interesting: 40 percent of founders were between 30 and 39 years old; 20 percent between 40 and 49; only 34 percent between 20 and 29. That means that over 40 percent were over 30, which challenges the conventional wisdom about startups being a game for the young.

The other data point likely to get tongues wagging is the schools where founders are mostly likely to come from. Number one is Stanford’s Graduate School of Business, followed by Harvard’s biz school, Berkeley’s Haas School of Business, MIT Sloan, and Tuck School of Business at Dartmouth.

There’s other data in there, of course. Check it out and post any other thoughts below.

Palm Pixi

After covering Apple’s music event this morning, I met with Palm and got a hands-on look at the company’s new Pixi smartphone, which Palm announced early today

I was a bit underwhelmed by the actual phone, which will be the second to run Palm’s WebOS software. But the Pixi, which Palm plans to launch before the holidays, will have at least one new features that will be very cool.

I found a lot to like about Palm’s Pre, the Pixi’s WebOS predecessor. One of the features that I liked most was something Palm calls Synergy. The feature collects and combines address book information from a variety of sources and displays them all together.

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I’ve been using LinkedIn for so long, I can’t really remember when I first signed up. You can find my profile here. At times, I take it for granted, and at other times I find it to be the most useful social networking service I use.

I was drawn back to it Tuesday night when I got an email me alerting me to a new application directory:

“Today we’re announcing many more ways to interact with your network on LinkedIn. Whether it’s a new way to create projects and collaborate, share information, customize your profile, or gain key insights, the new LinkedIn Applications deliver.”

The first app I tried to add was a Wordpress application. But for some reason, all I got was an error message saying it was “unable to fetch my blog.” Hopefully, that’s just a beta glitch.

Will these applications get me to spend more time at LinkedIn? We’ll see.