In order:
1. iPad signups. 2. friends inviting friends. 3. facebook ads targeting interests and demos. 99. google display 10001. google search.
1. iPad signups. 2. friends inviting friends. 3. facebook ads targeting interests and demos. 99. google display 10001. google search.
On Facebook, the bigger the crowd you have liking your page, the more you can do ads that say "your friend likes Fab.com..."(though the reach isn't huge for those ads).