[inghoff]

I've grown more and more into thinking having a database is maybe overkill for only a blog. I do use Octopress too and it really makes you think "do you really need a DB for that?"

If you compile your posts into HTML, use Javascript for more dynamic content (like comments by Disqus or a Twitter feed, for example), HTML files take almost no resources to serve, so you can handle a huge load without many resources.