Crowdfunding is the practice of funding a project or venture by raising small amounts of money from a large number of people, typically via the Internet. Crowdfunding is a form of crowdsourcing of alternative finances. In 2015, over $34US billion was raised worldwide by crowdfunding.
Different Types of Crowdfunding
Donation-based crowdfunding: Donation-based crowdfunding is the collective effort of individuals to help charitable causes. Donors come together to create an online community to raise funds to common causes.
Rewards-based crowdfunding: Reward-based crowdfunding has been used for a wide range of purposes, including motion picture promotion, free software development, inventions development, scientific research, and civic projects.
Equity-based crowdfunding: Equity-based crowdfunding is the collective effort of individuals to support efforts initiated by other people or organizations through the provision of finance in the form of equity.
CoopCrowd is a Peer-to-Peer Donation-Based Crowdfunding Platform where every member helps the Cooperative and is helped by the Cooperative.
Sources: Wikipedia (https://en.wikipedia.org/wiki/Crowdfunding#Types)