I added the BlogRush widget thing onto my blog to see what the fuss is about. It looks like an interesting way to link to other related blogs and offer a different way to surf, etc.. they'll eventually put some ads in with the links, and it looks like people will be able to buy "credits" so their links will show up in the little widget, but it doesn't look like bloggers will be able to make $ off of it unless maybe there's a way to sell credits? hmm.. However, it might provide some increased traffic.

If you run a blog take a look at what they're building up here. They have a nice stats system on the backend that lets you see how much traffic you've generated, and how many times your links have shown up on other sites.

It's also based on a referral system, so if you get others to join then your links will show up more often on other sites.