Article about Google search tips
A reporter has posted in his blog a list of tips for Google Search, recommended by Daniel Russell during a recent conference. Daniel Russell is the professor of MOOC Google Power Search.
How to solve impossible problems: Daniel Russell’s awesome Google search techniques
Another interesting article about the translation of foreign pages in Google: Websites in Different Languages Offer More Global Perspective
These articles are mentioned in Google+ space dedicated to Google Education
An interesting experiment to confirm whether Google is able to recognize similar images