- Able2Know Ask an Expert - Ask an expert or share answers. Features questions and discussions on diverse topics.
- AllExperts Questions & Answers - A directory of subjects with volunteer experts to answer posted questions.
- Ask FactCheck - Ask political questions and selected questions will be researched and answered.
- Ask Me Help Desk - Ask a question in one of over 300 categories.
- Askpedia.com - Ask questions and get answers from volunteer experts.
- Askville by Amazon - User-generated questions and answers, also with discussions and expert user profiles.
- Blurt It - Users can ask questions, answer questions, and collect points for questions answered.
- EnergySavvy - Provides answers via email or online about home energy topics. Answers are free, as is the archive of questions and answers from other users. Also provides a directory of articles on topics related to reducing home energy use.
- MaybeNow.com - Ask questions for answers and chat from other community members.
- Smart QandA - This is a service from Encyclopedia.com. Users can ask questions via email and the answers will be posted and verified using reference information that is available at Encyclopedia.com
- The AnswerBank - Post questions and answers or discuss topics of interest.
- WebAnswers.com - Provides answers to input questions in a number of areas including games, fitness, and education.
- WikiAnswers - Q&A wiki - Questions and answers in a shared, wiki format.
- wiseGEEK - A growing archive of questions and answers, covering twenty different categories. Users can ask questions and comment on articles.
- Yahoo! Answers - Ask questions and get answers from other people in the community.
- Yedda - Ask questions and share, explore and discover knowledge.
- Zoomnia - Choose a type of local expert and ask a question to receive free advice, qualifications of local businesses, or times of availability from real people who serve your area.
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