Crowdsourcing is the function of asking the public for their input on your product or business idea. 

 

It uses online platforms to reach out to a large audience worldwide and solicit their feedback.  This method draws on the collective memory, expertise and experience of a large group of people. 

 

Crowdsourcing can be a great way to start building a relationship with your consumers.

Utilize this resource to engage in crowdsourcing.

UserTesting:
If your idea is a website the UserTesting resource lets you find people worldwide who will access and use your site and give you feedback on it.  They even provide you with videos of users on your site or app explaining where they get stuck.