Users submit innovative solutions to the world's problems.

Members discuss what they would do were they a doctor, a politician, a rocket scientist, and a porn star. Users must select a username and password before posting a new message.

Contains discussions on the end of the world. Free registration required to participate.

Holds discussions on any subject. No registration needed.

A suggestion box for socially innovative non-technological ideas and projects, with £1,000 UK sterling awards annually for the best ideas or projects submitted.

Forum, debate and message boards: If I Were President forum, and What Really Bugs Me forum. No password needed.

Focus:es on freedom of speech. Users must select a username and password to start new discussions or reply to existing ones.

Topics include love, peace, happiness. Users must register to participate.

News discussion forum open for people of all ideological pursuasions to browse and post articles and comments. Boards organized into issue categories.

Self-supporting community discussing issues of politics, war, and a variety of other topics.

A place to post an issue or to respond to an issue someone else has posted.

A forum for discussing social reform through diverse means, including technology, philosophy, psychology, biomedics, politicss, theoretical sciences, and methods of global communication.

An independent space to exchange information and ideas through online dialogue. Focus is on common ground and solutions. Forums are on health, sustainable development, CSR, religion, education, and community.

Discussion forums with ratings of posts from readers.

A forum for people from all over the planet to share ideas, communicate and better understand each other.

Discuss world politics, religion, and issues, as well as chat.

Discussion about issues surrounding Canadians, anywhere from politics to computing to gaming. No registration required.