Derek Johnson over at his blog, http://thederekjohnson.com/, has come out with a list of those who are under 30 and running their own successful companies. Derek is a 23 year old CEO of internet startup, Tatango.com and quite successful in his area of expertise. I personally heard of him through Gary Vaynerchuk and Daniel Brusilovsky.
I’ve added myself to his list (I’m #29) and if you are a young entrepreneur, go ahead and add yourself to this list as well. It is always beneficial to see those your age who are going through the same things you are, rather than think you are alone in this area.