My own thinking is that marketing is the hardest thing for a bootstrapper, and the one thing you can’t outsource. Knowing who your customers are and how to reach them is how bootstrappers can compete with the big players.
/ growth hackers
Ahem.
I’m told these two guys called Ian and Andrey are experts in growth hacking, being big fans of the movement. I’m sure they can help you. cough cough.