If you geocache you can use it on google earth. It makes it a lot easier to find caches and such. Puppet heres the link to it
http://www.geocaching.com/kml/buildnetworkkml.aspx
thats what i used. You DO have to sign into geocaching.com in order to use it though. Once you dl it it'll bring up google earth for you. When you close it it will ask you in you want to save the temporary folder...click yes and it will put it with your 'my places.' So after you open it next time it will still be there.
http://www.geocaching.com/kml/buildnetworkkml.aspx
thats what i used. You DO have to sign into geocaching.com in order to use it though. Once you dl it it'll bring up google earth for you. When you close it it will ask you in you want to save the temporary folder...click yes and it will put it with your 'my places.' So after you open it next time it will still be there.