None of these places that offer "easy bitcoins" are official. Think about it, would you sign up for the service if used dollars? Nope.
It's easier and less risky to offer a product or service to get "easy bitcoins".
hrm, i dont think signing up is part of the procedure but it seems that a lot of people are doing bitcoin boom, there are a huge list of 100 referrals in the ebook from this forum