I recently designed and bought business cards from VistaPrint to promote my blog. They are awesome!!!
If anyone is looking for an inexpensive way to get the word out about your blog, business, or hobby, definitely check them out. They're fast; you can choose from tons of designs, or create something yourself. This is not the first time I've ordered from them. I also printed some things for our wedding last year.
I just wanted to pass the word along, in case you didn't know! If you do decide to use them, Google around for discount codes. I got my business cards at 80% off!