If you plan to form a nonprofit, it's important to know about the most common types of 501(c) groups. Get expert-backed tips for your organization.

Dean of Graduate Studies at Excelsior College, a nonprofit, online college helping more than 180,000 complete their degree since 1971. The missions of for-profit businesses and nonprofit organizations ...

Opinions expressed by Entrepreneur contributors are their own. When people think of nonprofit (sometimes called not-for-profit) organizations, they generally think of charitable and religious ...