Google is a very powerful tool. You can find pretty much anything online these days. The trick is knowing how to find exactly what you are looking for.
Here is an interactive infographic with some great tips for better internet searching (specifically with Google).
UPDATED 11/14/13
It seems the animation is no longer available, so here are some other search resources and a couple of images from it:
http://www.missionimblogable.co.uk/2012/06/get-your-phd-in-googling.html
https://blogs.glowscotland.org.uk/fa/ICTFalkirkPrimaries/2012/03/13/primary-research-skills-tools/
Related:
Google - free posters with search tips for teachers
Tips for More Effective Google Searches
Google Search Education - teach your students to search better
10 Tech Skills Every Student Should Have
Google for Education Resources - tips, apps, how-to's, getting started, lesson ideas, and more
Google Search Guide
10 Tech Skills Every Student Should Have
Google for Education Resources - tips, apps, how-to's, getting started, lesson ideas, and more
Google Search Guide