“It’s hard to tell, at first glance, whether Zerofootprint is a serious business or a feel-good environmental action group. The answer, easily discovered before long, is that it is likely both…the company as two separate entities: A non-profit umbrella group, the Zerofootprint Foundation, and separate for-profit arms that handle building out the calculator for cities and other companies. Zerofootprint can thus profit from the various websites it builds out, getting revenue from advertising, partnerships with other organizations, and payments from its clients…Zerofootprint currently has six cities signed up for its service, including Boulder, Colo. and Seattle, Wash.” Continued in Venturebeat…