Have you ever heard of Live Search macros? According to the blurb they are:
"Custom-tailored search engines that give you more relevant search results for what you're interested in."
Well good news - the SQL Server documentation team have built a macro that enables you to search Books Online straight from a web browser using Live Search. And here it is: http://search.live.com/macros/sql_server_user_education/booksonline. Here's a screenshot:

I'm quite impressed by this. Its great to see two disparate groups within Microsoft coordinating like this, particulalrly on two subjects that I am especially interested in:
SQL Server blog posts - http://blogs.conchango.com/jamiethomson/archive/tags/SQL+Server/default.aspx
Windows Live blog posts - http://blogs.conchango.com/jamiethomson/archive/tags/Windows+Live/default.aspx
-Jamie