Configuring your WordPress permalinks is simple and only takes a second, but understanding what they are and how they work is key to setting up the best permalink structure possible. Your site’s permalinks are like the street address for your site’s web pages. They help both people and robots understand your site’s structure and navigate its contents. There is no “one magic permalink recipe to rule them all,” but keeping a few tips in mind makes it easy to optimize your WordPress permalinks. This DiW article shows you how..
Read the full article here:
digwp.com/2010/07/optimizing-wordpress-permalinks/
A PDF version for archival purposes is here: Optimizing WordPress permalinks
