Nonprofit organizations often have a big problem when they try to generate revenue. Most nonprofits rely too heavily on donations and other forms of philanthropic revenue. That can be risky, because philanthropy is based somewhat on whim. The donor has to want to give the nonprofit money. If they don’t feel like giving, the non-profit’s revenue dries up. Securing foundation grants and government contracts can feel equally capricious. So what’s an organization to do? Consider earned income to supplement these important sources of revenue. Here are 10 reasons to consider diversifying your revenue through earned sources.