There is another form of exchange that is much more passive, but gives good results. As far as I know InstantBuzz were the first to come up with this idea of having ads in a task bar. Every time you change your page, while surfing, the ads change. Since this blog is not just about exchanges and more about traffic in general I feel this is still on topic. What the heck, I run the blog, I can do what I want! ;)

Give instant buzz a try