I am not sure if you have every heard of Stumble Upon (I am probably the only one who hadn't until recently ;D) but it is something I just learned about. I was going to try to sum it up but then I found this wikipedia definition that helped. :D
StumbleUpon is an Internet community that allows its users to discover and rate Web pages, photos, and videos. ...
If you look at the bottom of my blog posts you will see a tiny little icon that looks like a squiggly S. This is a link to add that post to StumleUpon. The goal is to help drive traffic to your site. While I am not exactly looking to hugely increase my traffic per se, I am enjoying knowing that what I write might be helpful to someone out there.
Anyway, if you like a post you can click that button and add it to the community. If you are a blogger yourself you might want to think about adding it to your blog. :D