Long but useful study of how a bunch of small nonprofits made the most of social media for advocacy & fundraising: http://nonprofitquarterly.org/2016/04/25/social-media-effectiveness-for-public-engagement-an-example-of-small-nonprofits/?utm_source=Daily+Newswire&utm_campaign=457086ef37-Daily_Digest_22944_25_2016&utm_medium=email&utm_term=0_94063a1d17-457086ef37-12442753