If you fantasize about someday getting rich and/or popular via the internets, site traffic is pretty much the holy grail. Projects such as BlogRush give you some way to get more traffic by linking you to other like-minded blogs. Doesn't work very well. Despite their "evaluation" of the content of your site, they make a judgement about whether you're worthy of the almighty Blogrush widget.
They actually approved a site called World Cooking 123. This site has approximately 18-20 clickable ads above the fold. Don't visit, the site will likely crash your browser. It's a detestable site (and, yes, I'm hoping they Technorati themselves 'til they're blind and see this post) I've ever seen. Once you page down a few times, there's a blip of content. I never made it, my browser kept crashing.
I can never figure out sites like this. They usually don't get any traffic, they're ugly and I suspect they make about a nickel per thousand visitors. Fortunately, these sites languish quickly. Everyone's busy and everyone knows how to buy stuff, going to some obscure site isn't the major path to buying cheap shit for your kitchen.
Fortunately, quality content trumps all. Smart, clever and not greedy people rule the creative web.