Here’s a follow up to my first blog post about google earth not being free, it seems the latest license agreement has bumped up the section about using GE for non-personal use –
1. USE OF SOFTWARE The Software is made available to you for your personal, non-commercial use only. You may not use the Software or the geographical information made available for display using the Software, or any prints or screen outputs generated with the Software in any commercial or business environment or for any commercial or business purposes for yourself or any third parties.
See Ogleearth for more information.