I like Derek Sivers' take on it. Your next big break is going to come from someone you know, so get out there and know people. Be helpful, and make sure people

I like Derek Sivers' take on it. Your next big break is going to come from someone you know, so get out there and know people. Be helpful, and make sure people know what value you can create/provide. And they'll make the referral, often in valuable situations you can't even foresee or imagine.