Wow,i just found this free blog link exchange network, BlogExplosion, which some may already be using.
After signing up free, you can a portion of traffic from people who sign up using your link.
That means if your affiliate’s blog gets 100 visitors, you will get a portion of an equivalent amount of traffic to your blog (between 5 and 15%).
It’s an interesting, no-cost way of building traffic.
If you’re like to check it out and sign up, you can visit it here.