How can you finance your ideas, projects and business models if you receive little or no support from banks, business angels or VC companies? One possible answer is: money from the crowd. Swarm financing offers you various opportunities to obtain capital from many, usually small, investors who share your vision or simply want to support you. But what forms of crowdfunding are there, how do they work and what legal framework do you need to consider? Doch welche Formen der Crowdfinanzierung gibt es, wie funktionieren sie und welche rechtlichen Rahmenbedingungen müsst ihr beachten? We will explain the four main forms of crowdfunding: Crowdfunding, Crowdinvesting, Crowdlending and Crowddonation. We will also discuss the advantages and disadvantages, the opportunities and risks and the legal aspects. We look forward to your questions and feedback.