This question is kind of general. It depends on your niche market and luck. I do suggest you follow Seth Godin's blog as he gives a lot of insightful advice you can use as startup.
http://sethgodin.typepad.com/seths_blog/
Not just LOLCAT, DailyWTF, etc. but also HN, Slashdot, etc. Not just I waste a lot of time reading the articles, I probably waste more on reading the comments... while keep delaying work at hand.
It's hard being a specialist but almost anyone can apply for security.
Well in my case if I had to I'd ask for female security officer (or gynecologist for that matter).