A few web links for Goolge Earth:

http://googlearthusersguide.blogspot.com/

http://www.eastchester.k12.ny.us/schools/hs/teachers/fermann/GE.htm

They have a "GE Manual for Earth Science Teachers" which is good.

http://www.googleearthhacks.com/

Some great things people have figured out how to do.

Make sure you check out "The ten best things you can do with Google Earth"

Find the sub in Portsmouth, New Hampshire.

http://bbs.keyhole.com

The "Google Earth Cummunity"

http://www.mi-perm.ru/gis/earth/

Step 1. My first placemark. Step 2. My first image overlay. Step 3. My first network link.

http://slideshare.net/qdsouza/google-earth-a-classroom-tool

Check out 50 ideas in 50 minutes.

http://www.shockwave.com/contentPlay/photojam4.jsp?doc=13634744/1160428165779_34

Some ideas on why Google Earth (GE) was created.

http://gearthblog.com/

A BLOG site for Google Earth. Also check out the "GE Basics" section.

http://kokae.libsyn.com/

POD cast instructions on howto use GE.

How is Google Earth being used

A geography teacher in Scotland (http://OllieBray.com) gave a conference presentation "Movie 50 ideas in 50 minutes" which is available online from: "http://video.google.co.uk/videoplay?docid=-2717838093983614120&hl=en-GB". He's using it to get students involved in geography. His talk is on 50 ideas to change how teachers teach geography in gradeschools.

A free GIS system.

A really cool toy.

Links in really nicely with http://maps.google.com, just add a '/maps?q=' followed by a URL to your .kml file. For example: "http://maps.google.com/maps?q=http://www.sr.unh.edu/~rea/adv060817/gaps.gdb.kml". Note this example was done with gpsbabel (http://www.gpsbabel.org/).

Goes great with

The gps reformating swiss army knife "gpsbabel" (http://www.gpsbabel.org/).

Your own GPS track logs.