Felix Salmon cautions:
Buying internet companies is very, very hard: even if they are set to be very successful on their own, that’s no reason to believe that they will have similar success in-house. Google bought Foursquare back in 2005, when it was called Dodgeball, but then closed it down; only when its founders left Google and recreated the company as Foursquare on their own were they able to succeed.
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