Ten things you should know about Google Instant -
http://blog.searchenginewatch.com/100910-050505

Some things you need to know about transitioning your pay per clicks from Yahoo to Microsoft.
http://www.clickz.com/clickz/column/1731041/yahoo-bing-integration-the-transition-checklist

Notes from Google's head about personalized search - http://searchengineland.com/schmidt-great-stage-search-is-autonomous-personal-50014