I've just used Website Grader's free SEO report tool and got a respectable 84%. Not bad considering I know very little about SEO and do nothing to improve my SEO performance. Interestingly, they checked out the top 20 bloggers and found most of them were making fundamental SEO errors.

According to WG, I need to add some keywords in the meta-data (although most people don't think this is of much importance, especially to Google) and I need to renew my domain (it's got 79 days left).

WebSite Grade For mikepower.net : 84/100 (October 03, 2007): A website grade of 84 for mikepower.net means that of the thousands of websites that have previously been submitted to the tool, our algorithm has calculated that this site scores higher than 84% of them in terms of its marketing effectiveness. The algorithm uses a proprietary blend of over a dozen different variables, including search engine data, website structure, approximate traffic, site performance, and others.