Yedda is a community-driven question and answer service. Users ask questions that people in the community answer, and others can comment on and refine these answers, as well as search for past questions. Yedda also offers the ability for community members to register themselves as experts for certain tags. When a question is posted with one of these tags, the community members registered to that tag are emailed for their response.
LicenseFree
Operating System Webware