List some WikiAnswers alternative websites

Answer 1

While other questions and answers websites exist WikiAnswers is the best by offering the Wiki platform for people to share and collaborate their knowledge. WikiAnswers is different from other sites where each answer stands alone and you can't get to one comprehensive answer. Another thing that make WikiAnswers best is that it offers alternate wordings to each question reducing the possibility of duplicate questions asking the same thing, and then offering people to work on one question with one best answer.

See the link below for a list.