Then you should plan to attend some green business events. No matter where you are, there is bound to be such an event near you. Check with your local Chamber of Commerce or look at your local events calendars. Not a Chamber member? Check out the national Green Chamber of Commerce.
One of my favorite events is the popular Green Festival which is organized by environmental and social justice nonprofits Green America and Global Exchange and happens at several locations throughout the USA several times annually.
Here in the San Francisco Bay Area we just had a Green Festival in November 2010 at the San Francisco Concourse Exhibition Center. This event is a great way to learn about healthier environmental, economical and social solutions. You can attend presentations, film screenings, and many exhibit booths.Or you may even consider setting up a booth for your own business.
If you do go to such events be sure to meet and greet people, don't just look around. Introduce yourself to as many people as possible. Tell them about your business, talk about your needs or your goals. Compare products or services if you can. Use these events as an opportunity to network... that can lead to some business down the road.
Whatever you do, come prepared with plenty of business cards, a positive attitude, and a willingness to approach as many people as possible. And don't forget to follow up after the event!