The term "private resources" generally refers to private-sector financial assistance for those small businesses that want to go green. Those looking for loans or other financial assistance would typically be interested in larger scale projects involving upgrades to your business or new equipment. If the resources you're looking for are more in the nature of guidance and information rather than financial assistance for structural upgrades, go back to Federal Government Resources or State Resources.
If you intend to make a green investment in your home or business, and you're interested in exploring what private resources might be available, there are some options. Generally speaking, the options for small business financing of green projects are the same as those available for small business financing of any project. In other words, there aren't many green-specific financing programs.
Some do exist, however. For example, EnviroTech Financial, a California-based company that operates in every state but Illinois, offers financing for energy-efficient improvements, as well as environmental consulting services. Malcolm Pirnie, a New York-based company operating in every state as well as in Guam and Puerto Rico, offers similar financing and consulting services. And there are others as well.
To learn more about what options are available, go to ENERGY STAR's small business resource page.
In addition to private resources, financing might be available from the federal government, most commonly from the Small Business Administration, or from your state government.