I was just posting a Search Engine Optimization question on the House of Fusion CF-Talk list when Nick Tong posted a link to "What Search Engine Spiders See". This page blows my mind. It allows you to enter in a url and get a report back regarding the page content based on how the search engine web spiders/crawlers see your content. It is fantastic for seeing exactly what your page has and perhaps more importantly, what your page is lacking in terms of headers, alt tags, and general content.
Nick posted this saying that he originally got it off of AndyJarret.co.uk.