Be sure to grab a copy of Meryl’s manifesto for ChangeThis.com: 5 Quick Tips to Building a Better Blog.
I really like Tip #3 on Readability. She recommends giving font size control to your readers (and advises on how to do that).
Full disclosure: Meryl was the researcher extraordinaire for The Corporate Blogging Book. She seems to have omitted that from her interesting bio, which is also part of her “manifesto.” Go Meryl!