This is not new, but I wanted to share an incredible blog post from Jimmy Atkinson at Online Education Database. Research Beyond Google is a helpful list of librarian-approved online research tools that will satisfy any professor's requirements to go beyond Web search engines when conducting research. That edict is probably a good idea for many of us outside of a university setting as well.
Google, the largest search database on the planet, currently has around eight billion web pages indexed. That's a lot of information. But it's nothing compared to what else is out there. Google can only index the visible web, or searchable web. But the invisible web, or deep web, is estimated to be 500 times bigger than the searchable web. The invisible web comprises databases and results of specialty search engines that the popular search engines simply are not able to index.
Do you think your local or university librarian uses Google? Sure, but certainly not exclusively. In order to start researching like a librarian, you'll need to explore more authoritative resources, many of which are invisible.
Of course, most SEW readers are familiar with Gary Price's excellent Resource Shelf and its companion DocuTicker, edited by Shirl Kennedy. And Meredith Farkas has suggested several resources at Information Wants To Be Free.
It's a good time of year for searchers, and search marketers, to step back and realize that no matter how big Google gets, it's still not the only place to find what you're looking for.