May 26th, 2010 
admin CrunchBase is the free database of technology companies, people, and investors that anyone can edit. It is developed and maintained by TechCrunch with the support of the tech community and visitors like you.
At CrunchBase you can learn and edit everything about companies like Facebook, YouTube, Twitter, Invesp, MySpace and Tagged, products like Droid and Google Wave, and people like Mark Zuckerberg and Steve Jobs.
Currently, all additions and edits to CrunchBase go through an approval process before they are pushed live. You can add all type of information tp your CrunchBase profile like Company name, URL, Blog, Blog feed, Phone, E-mail, and Founding date.
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really it is going to teach you everything in limited resources….thanks
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Hey Thanx i was lookin for this!
Awesome article .I ll try this database for myself.
Nice, i still new to google wave