An article by e-school news describes it this way:
"Let's say, for example, you're curious about accommodations in France and enter a search for "Paris Hilton."Google recognizes this as a search in the category of "Regional-Europe-Travel and Tourism-Lodging-Hotels" but still produces page after page with links about celebrity socialite Paris Hilton and her exploits. That's because Google's engine ranks pages largely based on how many other sites link to them, sending the most popular pages to the top.
If you run the search on Grokker, however, the resulting circle shows all the possible categories of information the internet offers on a search for "Paris Hilton"--including reviews, maps, and online booking sites for the Hilton hotel in Paris, which are all but buried in the Google rankings. Now you've much more quickly found not what is popular among internet gawkers, but what is genuinely useful to you."
I tried out vivismo.com, and my initial impression was that I liked it. I'm interested in what you guys think. Why don't you try it out and tell me if you think Vivismo or Google would be more useful for your students.
