When I started using SEO for Squidoo lenses systematically, I latched onto Webconf's 15 Minute SEO checklist.
It was the first recommended resource I included on my Squidoo SEO lens in '07.
Webconfs' SEO checklist is oversimplified, of course. It was also written 4 years ago, which is eons in web terms; most search engines will have changed and refined their algorithms since that checklist was written.
Nevertheless, looking back at that page, I still agree with most of their suggestions, even if I think some things are more or less important than they do.
