Google+, Hipster, Connect.me and Instagram! They all hit a gazillion users in no time at all — and you can even read all about it in everyday media today. This is every product creator’s dream. Ok, granted, Google already had their users well before the launch of its social extension. But how did the other ones succeed in building such a strong fellowship in a few months (or even days)? Turns out that many of these services’ creators were very busy bees and ma...