http://www.seobook.com/blog publishes an overwhelming amount of information each day. However, it’s organized in sections so that you can grab a thought or snippet to digest.
One thing I picked up is the use of the
rel="nofollow" link attribute. I had thousands of clicks on ePN from MSN’s bot crawling my site the other day.
The linked to page will not get indexed but I still have to verify that the link text itself is indexed. I see contradicting opinions on this.
I guess this is why there are so many blogs on SEO. The tools and techniques constantly change.