Publisher's Clearing House's has a search engine
Blingo is the name of the search engine. This search engine is fun to use for one reason. Every search using Blingo is a chance to win a prize. It is completely free and it is very easy to sign up and begin searching
Blingo seems to return some pretty useful results in my tests. That's probably because it is powered by Google. In addition to searching for web pages Blingo allows picture searches and a news search.
http://www.blingo.com