The Google Earth for Educators Community provides all of the tips and tricks for using Google Earth as a teaching tool. On this site, you can view lesson plans for a variety of grade levels and subjects, discuss Google Earth teaching tactics with fellow educators, see student-created work, and read how other teachers are using Google Earth in the classroom.
Google Earth Video Tutorials
This resource page will provide you with a variety of ideas on popular methods to implement Google Earth in the classroom for a variety of subjects.