WikiBrains

WebApp I discovered Dec'2012.

http://www.wikibrains.com/

Seems like a lite version of The Brain more than a Wiki. WikiBrains is a growing community of creative people from all walks of life who embrace Associative thinking to get inspired and out of the box. You may associate "SigmundFreud" to "Psychology", then someone across the globe links it to "Libido", another one to "Subconscious", and another one to "Dreams" and so on ad infinitum with ever-expanding branches and related content. It is a social, fun and smart space where ideas roam free and multiply.

Interesting visual Manifesto.

http://twitter.com/wikibrains

http://www.wikibrains.pt/

http://meta.wikimedia.org/wiki/Wikibrains

http://www.crunchbase.com/company/wikibrainstorm-com