These links were tagged on to the end of a great article by Dave Chaffey "How to exploit search engines"... in December/January's The Marketer from CIM - I also recommend the magazine.
Understand customer search behaviour using tools... see the popularity of phrases related to your site at http://www.davechaffey.com/seo-keyword-tools - he wrote the article...
Insider info on the latest changes at Google from Google employee Matt Cutts' blog www.mattcutts.com
Use Yahoo Site Explorer to find which backlinks you or competitors have https://siteexplorer.search.yahoo.com
Link-building approaches from LinkMoses' Eric Ward http://www.ericward.com/articles/
Understand the SEO top ranking factors using the experts' compilation http://www.seomoz.org/article/search-ranking-factors
Read e-consultancy's Search Engine Optimisation Best Practice Guide www.e-consultancy.com/publications/seo-guide
- Track the latest developments at Search Engine Watch www.searchenginewatch.com
- Gain insights from industry guru Danny Sullivan at SearchEngineLand www.searchengineland.com