The very smart folks at Distilled in the UK have created this terrific guide to setting up WordPress for small businesses.
If you’re not familiar with WordPress, it’s a really amazing tool for creating not just blogs, but entire websites as well. Amazingly flexible, easy to use, with tons of themes and widgets available to snap in to add all sorts of style and functionality to your site. And (with Joost’s SEO plug-in for WordPress) very good for search engine optimization as well.