Wikipedia
Grupthink
Grupthink (sometimes written Grūpthink) is a website that allows users to create and run opinion polls on virtually any subject. The website also allows any user to add an answer to an existing poll. Questions asked on the site are usually open-ended but can also be simple yes/no queries.
The site also acts as a Social networking site by pointing the user to others who have answered polls in a similar way to themselves.
The site went online on 2 December 2005.
A professional version of Grupthink, which enables users to create their own Grupthink communities, was launched on September 16, 2009.