If you click here and then fill in your blog URL you will get an analysis of your blog's readability. You can also cut and paste some code to get an icon with the results to put on your sidebar. It includes an advert for some financial services so I haven't but you can if you want. The blog I copied this from is The Diary of a Reformed Workaholic which has a reading level of genius. I know some smart people. I was delighted to come in at junior high level. Will try to get it lower still.