Summer sale: Save 58%

Abhishek Bhati

(<a href='http://www.shutterstock.com/pic.mhtml?id=81292765'>Yuri Arcurs</a> via <a href='http://www.shutterstock.com/'>Shutterstock</a>)

Posting on Facebook is helping nonprofits of all sizes raise money

Abhishek Bhati, Diarmuid McDonnell