Friedly Suggestions

"FriendlySuggestions.com – A place where Friends can share Suggestions and Ideas on any topic.."

http://www.friendlysuggestions.com/

Google Moderator - Helping the world find the best input from an audience of any size.

*Let your audience decide
Get to know your audience by letting them decide which questions, suggestions or ideas interest them most.

http://www.google.com/moderator/

Global ideas bank

"The Global Ideas Bank aims to promote and disseminate good creative ideas to improve society. It further aims to encourage the public to generate these ideas, to participate in the problem-solving process."
http://www.globalideasbank.org