Via Boyd, at Texas Native these Google Labs projects;
Google Suggest provides a list of suggested search terms as you type. (Though it may not work on older browsers.) Even more useful (to me, at least) , is Google Scholar – which provides hits on published scientific articles.
It’s indeed fortunate that I have no life, or I just wouldn’t have the time to devote to this stuff.

“It’s indeed fortunate that I have __ life,”
Kate, you’re building a community here. 2005 will be a year of wonders. I’m quite intuitive!
Feliz Navidad.