Free Traffic Sources From Social Media Sites, and Web 2.0 Sites
People spend a lot of time on Social Media sites and it's easy to find very targeted groups of people. Remember these sites are mainly used for social interaction, so a heavy sales pitch usually doesn't work. Sites like HubPages, Blogger and Squidoo are good for creating additional portals to your main site. What's important here is all of these sites are VERY popular and can be used to send traffic to your websites.