The beauty of blogs: design simplicity
One of the things that I like the most of weblogs is that the web sites are fairly simple (and if you are using an RSS Reader, you do not even have to see the web site) so the only thing that really counts is which font are you using. My sister is using a very annoying font in her blog and I am trying to get her to change it. Browsers do not allow to many font choices to start with and people should stay with simple fonts like Helvetica or Arial (btw, check this link for an interesting story about how Microsoft made Arial the most popular font and here for a test to see whether you can differentiate Helvetica from Arial). At the end of the day, the important thing of a blog is the content and the opinion of the blogger so keep it simple and use a simple font.
