This tip from Mary Ellen Bates @Bates Information Services Inc.: Google Squared is a search engine that tries to provide answers instead of web sites. It builds a database of answers. For example, type in Blue Dog Democrats and you get pictures, names, birthdates, latest news. Or try one of Google's predefined subjects, such as US presidents or roller coasters.
Some tweaking is still needed - when you add North Carolina to roller coasters, you get Carowinds - good, but also the Miky Way galaxy and the Gemini constellation. Still -- way cool.
update: you can also add to the database yourself!