Social Networking sites are great ways to make friends as well as market your website. I am a strong believer in leading with myself rather than the products. What I mean by this is that when you are networking you are simply looking to attract the right kind of prospect to you. When in a chat room or signing someones page, always focus on the topic and never try to sell them anything. If people like you and you are attractive, they will naturally check out your page and then they will click on your site.
Here some examples of some of the networking sites that I belong to.