If you want to get serious fast, go to tech-related conferences. Take a stack of business cards. Shake hands. Constantly. Arrive early, don't eat lunch, stay late.

Be focused on how you can help people's business, even if you can't help them directly. (Don't make it all about "me, me, me". God, I hate when people are like.) You aren't trying to make a sale, you are building a relationship one handshake at a time. Directly or indirectly, you'll find plenty of business.