Great link, Greg. One note for those of you searching for various tips/best practices relating to anything web, and especially SEO, is to look at the search result's publish date. If it's an article called something like "SEO Best Practices", or whatever, it should have a publish date in the result. If it's says anything pre-2009 (and often 2010), you can safely move on because they are likely woefully past their price.
As an example, I just Googled "keyword meta tag". The results are as follows:
#4 2001 (!!!!)