This is a revolution! We are used to going to a bank with a business plan and been lent money on very high rates of interest - but only under increasingly demanding conditions. Crowd funding is the public investing directly to the businesses - at all stages of their development. Crucially there is a huge range of projects and Crowd Funders. You could do worse than just read and then click some of the WiKi link below.
Crowd Funding and Business Loans