One of the web communities I belong to, reddit, recently asked their users to submit questions to Ron Paul. Dr. Paul recently answered these questions from the community and can be seen here:

http://blog.reddit.com/2009/09/congressman-ron-paul-answers-your.html

Reddit.com is a social news aggregator where users submit links across the web and also vote these submissions up or down. The most popular links are displayed on the front pages. The comminity also is very active in debating, discussing and commenting on these links and issues.