Give your readers a chance to spread the word about your blog virally. If you aren't all ready doing this simple yet VERY powerful method, you definately need to be. Go to www.addthis.com and get those cute little buttons to add at the bottom of EACH of your posts. Then, when your readers find your post to be interesting/valuable or funny, they can easily share it with their own friends through Twitter, Facebook, Digg, etc. Use this leaveraging tool to your advantage!