According to Wikipedia, "Crowdfunding is the practice of funding a project or venture by raising monetary contributions from a large number of people. Crowdfunding is a form of crowdsourcing and of alternative finance. In 2015, it was estimated that worldwide over US$34 billion was raised this way."
Political Campaigns use Crowdfunding as a way to help raise funds to pay for getting their message out to their voters.
Non-Profit Associations use Crowdfunding to raise funds for all sorts of programs and facility needs.