Crowdfunding allows companies to raise funds from many small individual investors online rather than from traditional sources like venture capitalists or business angels. There are four main types of crowdfunding: microfinance, peer-to-peer lending, donor-based funding, and investment crowdfunding. New JOBS Act regulations will allow investment crowdfunding in the US through regulated online portals. This may compete with or complement traditional angel investors by providing an alternative source of funding for startups. However, angels may still provide advantages like business expertise and mentorship that "dumb money" crowdfunding alone cannot. The crowdfunding landscape is still developing and will change the investment environment significantly.