I think this video by Chamath Palihapitiya about FB growth strategy is super interesting (http://www.youtube.com/watch?v=raIUQP71SBU http://www.youtube.com/watc

I think this video by Chamath Palihapitiya about FB growth strategy is super interesting (http://www.youtube.com/watch?v=raIUQP71SBU http://www.youtube.com/watch?v=raIUQP71SBU). Relentless focus on building the thing the customer wanted vs focus on viral marketing strategies. That said, they had an inherent viral growth strategy by targeting their initial user base to a very sociable/vocal college crowd. That wasn't a growth hack, it was merely solving a problem that most college kids had.