Metafilter is a weblog where members can contribute links, general thoughts or comments on issues of importance. Metafilter provides a list of posting guidelines for new contributors to follow, which can be found here: http://www.metafilter.com/guidelines.mefi
MetaFilter provides several features and functionalities. The Ask MetaFilter (AskMe) function allows for community discussions, including bug reports, feature requests, and “self-policing.” The Projects feature is for members to announce Web projects and “self-link” content. Members vote on the posted projects and the most popular posts will be posted to the main site. The MetaFilter Music feature allows users to upload their own musical creations, along with playlist and favorites features. Additionally, the MetaFilter Jobs function was created for members to post job openings.
Free (contributions accepted and appreciated)