Google Earth Lessons
Shared by David (last name unknown, but he's a computer teacher at an elementary school in Central Florida)
http://gelessons.com/lessons/

25 Interesting Ways and Tips to Use Google Earth
View and download the slide presentation at:
https://docs.google.com/present/view?id=dhn2vcv5_175fp5qg9d3

Links in the slide presentation:
Geo Visitors http://tools.digitalpoint.com/geovisitors.php
Cross Curricular and Across the K-12 World with Google Earth http://www.googleearthgoods.pbwiki.com
geoGreeting! http://www.geogreeting.com/
Gigapan
http://www.gigapan.org/
Google Lit Trips
http://www.googlelittrips.com
Tom Barrett's blog
http://tbarrett.edublogs.org/2008/12/01/google-earth-is-our-paper-part-5-a-week-in-review/
Vocaroo
http://www.vocaroo.com/
Another blog from Tom Barrett
http://edte.ch
Math Maps http://edte.ch/blog/?p=555