4 links
BrainFlower
brainflower.com
A forum for creative, innovative and funny ideas. Entries are not published automatically, about half are accepted.
Brightidea
brightidea.com
A global creative community dedicated to making the world better one idea at a time. Ideas are sorted into categories and can be voted on.
Halfbakery
halfbakery.com
A communal database of original, fictitious inventions, edited by its users and spanning many topics.
Showing 20–4 of 4 results