Nicholas Prudhon wrote a neat guest post over @ blog - and it's a pretty interesting read. I mean we all do most of those unknowingly, but didn't realize we can actually use these methods to "measure" how well are are doing our SEO. Check it out ~ any comments?
I think Prudhon makes some excellent points. Most of what he states is common sense. The part that really grabbed my attention was tracking crawler activity levels. I hadn't considered the correlation between crawler activity levels, and the relevance of your site to the search engines. Once I read it though it was one of those "DUH!" moments. Overall I would say it is an excellent and informative article. 9/10 stars