How do I get more referrals from activerain?

So I'm stuck and could definitely use some help!!!

Any ideas would be greatly appreciated.... 

What is the best way to generate leads and referrals from the internet? 

Some people recommend facebook... others Myspace... and others activerain.

However, how do you choose merely from one and only one site to use? Also, what is the best way to get your name out there and generate new leads?

I want to take my online network to the next level!!