Learn English – Crowdfunding without the funding

single-word-requests

I'm looking for a word that is basically like crowdfunding/crowdfunded, except it's not about funding specifically and instead can mean any activity that involves a large group. Example: how would you describe Wikipedia? Crowd… written? Crowdproject? Obviously those aren't real words, those are just examples of what I'm looking for.

You have a sentence like this:
Kickstarter is a crowdfunding platform.

and I need something like this:
Wikipedia is a (adjective that implies it is written/contributed to by a large group of people) website.

Best Answer

Crowdsourcing:

Crowdsourcing is a sourcing model in which individuals or organizations obtain goods and services, including ideas and finances, from a large, relatively open and often rapidly-evolving group of internet users; it divides work between participants to achieve a cumulative result.

[...]

It has also been used by not-for-profit organizations and to create common goods (e.g. Wikipedia).
Wikipedia: Crowdsourcing