Also make sure to use lists, citations and images in your posts. Last but not least don't make your text all bold. Yours is. Underestimating the formal aspects of readability can render a compelling blog post useless.
Also, and this is probably highly subjective, but do not make your blog light foreground on dark background. It burns my eyes everytime I switch focus from that to any other application or website I'm using.
Yes, it's highly subjective, for me it works, it gives some contrast. People tend to be really "polarized" around this design pattern, with a 50/50 split... I guess I'm on the "use it" 50 percent :-)
Maybe it's just me then, I deactivated anti-aliasing in Vista as most traditional fonts look crappy and barely readable with it.
Nonetheless, I'd rather stick wit the classic web safe fonts like Arial/Helvetica and Verdana.