Sometimes searching Google 8 billion page index is a big waste of time.
I know someone who spent nearly a full day searching the internet for something specific in order to write a school paper. When I found out what she was looking for, I suggested using elibrary.com (now highbeam.com) since I was a subscriber and I knew the site was full of high quality articles from hundreds of publications. Within a few minutes we found exactly what she was looking for.
For scholarly content, Google is making good progress with Google Scholar which seems to have 300,000,000 pages indexed.