Science for SEO

SEO popular topics:

 - How to get more traffic to your blog

 - How to use LinkedIn/Twitter/etc to increase your traffic

 - NoIndex /No Follow

 - SearchWiki

 - Guides and ebooks / tutorials on all manner of marketing things

 - x number of easy seo strategies

 - Wordpress themes

 - Link building strategies

 - Social media evolution etc

 - Tools you might be missing etc

 

 Computer science (IR, NLP) popular topics:

 

 - Classifier systems

 - Recommender systems

 - Personalisation

 - Ranking both in SE and SN

 - Information retrieval & browsing

 - Q&A systems

 - System evaluation

 - Information extraction

 - Digital libraries

 - Interfaces and HCI

Not much correlation there sadly.  There's evidence of attention to links in both though and also to personalisation.  I guess that this means that both are not really picking things up from each other.  It's a gap that needs to be bridged.