This year "GivingTuesday" generated at least $45.7 million for nonprofit organizations. That's up roughly 65 percent from 2013 according to givingtuesday.org. Here are five ways to keep that momentum going through December and beyond: Cultivate Social Media Interact with donors and viewers on social media by thanking them, re-tweeting, or replying to direct messages. For example Irwin Naturals, an alternative health company, posted a picture showing how their fundraising p