We know he's a great blogger, but will he be any good at picking startups?

History suggests he will not.

Prior to starting the CrunchFund Arrington dabbled in angel investing and his record was not very good.

But, let's not forget that Bill Belichick once coached the Cleveland Browns and stunk. He got a second crack as the head coach of the New England Patriots and now he's in the conversation as the greatest coach of all time.

So, will Arrington follow in Belichick's footsteps, or will he burn $20 million? Read on to see for yourself ...

Seesmic has been trying to find something that works

Seesmic founder Loic Le Mur

Mike Arrington invested in Seesmic in November 2007. How has it affected his coverage of the company? According to Seesmic founder Loic Le Mur, it hasn't. He says Arrington has been pretty hard on Seesmic, and told his writers not to cover every little bit of news about the company.

What about the investment, though? Frankly, it's not looking so great right now. Seesmic started as a video aggregation site, then became a Twitter client, and is now trying to become CRM software. The company hasn't gained much traction to date, but maybe this latest incarnation will deliver Arrington a return on his small investment.

Dogster is a social network for dogs that was recently acquired by Say Media

Back in September 2006, Arrington participated in a $1 million round of funding for Dogster, a social network for dogs. Dogster was recently sold to Say Media for an undisclosed amount. Probably not a home run investment.

MC Hammer's company DanceJam looks like it was a dud

In May 2007, Arrington joined Ron Conway and a few others to invest in MC Hammer's startup, DanceJam. CrunchBase summarizes it as "a social media destination where users hang out and watch people dance, learn how to dance, or show off their moves online."

DanceJam was later sold. No word on price.

Online storage site Omnidrive died after two years

Omnidrive was a smart idea: You would be able to upload, download and edit files from your web browser. But, as they say ideas are worthless, it's all about execution. Looks like Omnidrive couldn't execute because it went out of business on September 15, 2008, two years after it raised an angel round of funding from Arrington, Jeff Clavier, Aydin Senkut, and Georges Harik.

Zaarly is a startup that gets people to do on-demand tasks

If you need a task done, and you're willing to pay for it to get done, Zaarly will connect you with someone. The startup is competing with TaskRabbit, which does pretty much the exact same thing. Zaarly has gotten plenty of favorable coverage on TechCrunch, but so has TaskRabbit.

Namesake is a social network from ex-Myspace people

Namesake looks like Tumblr, and it says it is the "easiest way to discuss what you love - live." We're not sure what that means, but it's backed by Kleiner Perkins, Redpoint Ventures, Atlas Ventures, and Paul Kedrosky as well as Mike Arrington.

Arrington also invested in Getaround

GetAround won TechCrunch Disrupt back in May. It's a peer-to-peer car rental service. If you don't mind letting strangers use your car, you can rent it out to them. Think of it as AirBnb for cars, if that helps.

Prism SkyLabs is the first CrunchFund investment, and it's also pretty stealthy