I was stumbling around yesterday, and I found this interesting site: RetailMeNot.com is a big database of online coupon codes. They even have a large collection of codes for web hosts. I’m sure there are other areas of the site that may be beneficial to bloggers.
You can easily get 10% off some decent web hosts, if you know what you’re looking for, though you should be prepared to spend awhile looking. (Or you could just input some company names into the search box, if you want to be lazy.)
RetailMeNot.com also has a handy search box on their homepage that allows you to search for coupons by domain, as well as bookmarklets and Firefox extensions to help you find deals as you surf.