I recently discovered a website which had characteristics very similar to MySpace but was based on discovering other sites and rating them and writing reviews for others to read. Of coarse I am talking about StumbleUpon! Just by registering and rating my site I have received a 110% boost in traffic. I'm lovin' this site. You can design your own profile and leave other people messages. You also have to install a tool bar which allows you to click a "Stumble" button and by clicking this button you are taken to a random website and you have the option to rate it and leave a review for it. The key is to add friends and get those friends to rate your site. You will defiantly see positive results. I would defiantly recommend all webmasters to register with StumbleUpon.