I created a SQL-specific search engine called SQL Hunter (http://sqlhunter.com), which gives priority search results to more than 45 SQL-related Web sites—and I'm adding more Web sites every day. SQL Hunter uses a tab layout to refine searches. For example, if you search on T-SQL, then click the Blog tab, you'll get a list of T-SQL blogs. I built SQL Hunter using Google's custom search engine and Google's AJAX Search API.
SQL Hunter can save you a lot of time when searching for SQL material because you don't have to provide advanced search parameters like you do when you use Google or other search engines. I hope you enjoy it!