I started using Google exclusively just before it became hugely popular I think. Anyway I thought it would be well to become familiar with one search engine and then move on to others. Well I rarely moved on.
But tonight the Librarian's Internet Index lead me to Online Education Database. From OEDb I learned that there is an Invisible or Deep Web. It was like pulling a loose thread on a sweater when this University of California Berkeley Library site displayed a search tutorial. It was like hitting a jackpot. Just look at the Table of Contents or the Handouts.
Thanks UC Berkely you have done one first class job.