Google earth post by Tom Barrett http://tbarrett.edublogs.org/2008/02/20/google-earth-tips-sharing-good-practice/
Post by Brandy at projectsbyjen
Her useful sites
I just fot this link for Google Earth Lessons. Haven't checked it out yet, but all the others I have used from the this source have been great.
google earth wiki http://classroomgoogleearth.wikispaces.com/
URL: http://www.gelessons.com/lessons/
Great blog post with links to user guides http://joewoodonline.pbwiki.com/Google+Earth+in+the+Classroom
Google earth blog
Great practical uses by Vince
Description: Google Earth How To's teach you the basics.
Google Earth lessons include Student Controlled (labs, mini-labs, home or school);
Teacher Controlled (lectures, videos, presentations, discussions); and Mini-Lessons (lesson starters on various topics). Search for lessons by Content Area.
Share your lessons with others
http://www.gelessons.com/lessons/submitlesson1.html).
Back up to the Google Earth homepage to find Nifty Tricks
(http://gelessons.com/lessons/tricks/index.html),
Screenshots Library (http://gelessons.com/library/index.html),
the Idea Bucket (http://www.gelessons.com/buckets/index.html), and other tools.
Powerpoint presentation http://techieteacher2008.googlepages.com/home
Ideas for classroom use of google earth