I've written Google Guide, an interactive tutorial on
searching with Google.  It includes exercises to give users practice
with the material and to present amusing and/or useful information.
Please suggest additional problems to include in one or more of the
following sections:

Sharpening Your Query
http://www.googleguide.com/page_9.html#exercises

Using Search Operators (Advanced Operators)
http://www.googleguide.com/page_10.html#exercises

Spelling Corrections
http://www.googleguide.com/page_13.html#exercises

Cached Pages
http://www.googleguide.com/page_15.html#exercises

Similar Pages 
http://www.googleguide.com/page_16.html#exercises

Specific Topics and Sites
http://www.googleguide.com/page_36.html#exercises

Great site! You've maintained the elegant simplicity of Google's
own site, along with a thorough attention to detail and content.
I wish you the very best in your ventures.

sublime1-ga

Thank you for your kind words.  May I have permission to include what
you said in the introduction to Google Guide?

http://www.googleguide.com/page_2.html

If so, how would you like to be described.  Here's what I wish to
include, with sublime1-ga replaced by whatever you choose:

"Great site! You've maintained the elegant simplicity of Google's 
own site, along with a thorough attention to detail and content. --sublime1-ga"

While going through your site, I noticed a slight error:

http://www.googleguide.com/page_2.html

"Google Guide is roughly divided into three parts. The first part
offers tips on searching. The second third explains Google's search
results and the third part describes many of Google's specialized
search services."

That should be: The second PART explains... 

<making use of my proof-reading skills> :)

Anyway, great idea you've thought of. I'm sure even us researchers
will get some use out of it!

rainbow~

Rainbow,

Thanks for suggestion.  I just put in the correction.  

Nancy