"The Promise of Xrefer"

Might be worth checking out for American Corners or IRCs with public access internet terminals. Writing in the January 2007 edition of Library Journal, reviewer Savannah Schroll Guz notes:

"If you are looking for a tool that answers some of the concerns that Google raises, look no further than Xrefer. This online platform provides both Google's swift, electronic convenience and an accuracy and focus that the search engine's web-scouring mechanisms cannot deliver. It is a portal to a multitude of highly regarded reference sources, drawing on 244 titles by 55 publishers and providing access to tens of thousands of images and audio clips. "