The guys from EvanCarmichael.com compile a Top 50 SEO Posts of the Year list every year. The 2009 edition is available already.
If you want to get a roundup of all the 2009 SEO tips, check it out. Daily Blog Tips was included in the list this year as well, with the post 4 Steps to Increase Your Blog Traffic.
As the year gets closer to the end I am sure we’ll see more of those “best of 2009? lists. If I come across some worthy ones I will let you know.