Does social media really work for nonprofit fundraising & advocacy? The old-fashioned methods—snailmail, personal interaction, email and picking up the phone—still work better:
http://www.theguardian.com/voluntary-sector-network/2016/mar/11/charities-wasting-money-social-media
https://changefundraising.wordpress.com/2016/03/14/are-fundraisers-wasting-money-on-digital/