Richard Byrne posted this article on his blog.
This is a great explanation of each type of web document. There are some great examples at the bottom of the chart (Google Spreadsheet).
Here is a direct link to the chart:
Here is a link to subscribe to a bundle of feeds that I am currently subscribed to in my Google Reader, including Steve Dembo‘s list of Google Certified Teachers. The list has been very inspiring and growing fast.
There are some really intelligent ways to search Google. I take for granted the multitude of options for searching. Everyone “Googles”, here are some ways to dig deeper and smarter:
http://www.google.com/intl/en/help/features.html
Related Articles Search Google Docs, Emails And Sites