Facebook page, twitter feed, or linkedin profile? The trick is to create a very engaging gimick. You only need them to buy it once, laugh at it a few times and tell there friends. It doesnt matter if they delete it after two months. Thats the trick! Coz after they've deleted it you've already designed your next one. I would be happy with $500 a day just so that it could keep me going till iv developed my next one