Here are a couple helpful resources about sustainability in philanthropy:
Naveen Jain, the founder of the World Innovation Institute, wrote a great article in which he advocates for a more entrepreneurial approach to assessing sustainability. He presents five ways to ensure successful programs, including talking with inspiring people who share your passions and communicating your ideas to people of the next generation.
Another useful resource about sustainability is from the Philanthropy Journal. This article emphasizes that big solutions can be attained with small steps by understanding and addressing the needs of the local community. By focusing on education as a sustainable measure, groups with limited funds can contribute to lasting change in the world.