Ceag is a project mainly written in RUBY and JAVASCRIPT, it's free.
Ceag Norge public website
Google Maps/Google Earth APIs Terms of Service: http://code.google.com/apis/maps/terms.html [executive summary: "The Maps API is a free service, available for any web site that is free to consumers."]
Heroku Terms of Service: http://legal.heroku.com/tos
Amazon Web Services Terms of Use: http://aws.amazon.com/terms/