Crowrdsourcing!

Crowdsourcing is a every interesting strategy to collect many points of views about a subject, with almost no money!
Indeed, refering to wikipedia, the "Crowdsourcing is a neologism for the act of taking a job traditionally performed by an employee or contractor, and outsourcing it to an undefined, generally large group of people, in the form of an open call. For example, the public may be invited to develop a new technology, carry out a design task, refine an algorithm or help analyze large amounts of data."
Many brains may do many things.....