Recently, Google created a video for the general public on exactly (well at least as much as they want us to know) how their search engine works. At only 3.30 minutes it is cram packed full of information.
(The video is on You Tube so if you reading this in an RSS reader or some place where it is blocked you might not see anything.)
They also created a couple other videos on how Google Apps works (great for understanding Cloud Computing) and a video completely dedicated to their AdSense product. You can find those on their How Google Works Page.
Did you know that Google also has tons of lessons, resources and free stuff for the classroom? On the main Google Search for Educators page there are lessons educators can use to teach kids what search is and how to use it effectively. (While they hope you use Google Search the strategies presented work for any search engine.)
All throughout the site you will find information on how to integrate Google Apps into the classroom, lesson plans using one or more Google Products like Docs or Books, and some really cool posters you can hang in your room reminding students about how to use Search effectively. There is lots of information like the Doodle4Google Contest, webinars, web safety information and information on upcoming Google Teacher Academy application dates.
One of the coolest resources they have is the Educator Community. There you can connect with other teachers using Google Products, post your own lessons, and ask questions about how to better use their products with kids.
So be sure to check out the How Google Works video series and take time to explore what they have created for educators.
Google For Educators