When Maja Leibovitz, president and CEO of Serious Celebrations, a New York-based event-management company, was asked by a financial services client to find a green venue in Manhattan for a 150-person conference, she turned to her friends at the MeCo listserv and learned about Global Green , which helped her to identify Manhattan's green buildings.

Planners can find green venues or hotels at several other sites:
Coalition for Environmentally Responsible Economies Green Hotel Initiative;
International Tourism Partnership;
Green Hotels Association;
GreenSeal;
Green Leaf Eco-Rating for Lodging Program (in Canada).