Crowdfunding has been used to raise money for everything from providing disaster relief to funding a startup. However, not every crowdfunding project is a success. Along with genius ideas, you’re sure to come across at least a few scams on websites like Indiegogo and Kickstarter.

Check out three of the most funded crowdfunding projects and three huge failures, as collected by Top-business-degrees.net. Following the example of success stories like Pebble, Ouya and Veronica Mars, you can collect tips from projects that raised millions of dollars.

Related: Your Top 5 Crowdfunding Questions Answered

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Is Crowdfunding for You? (Infographic)