Stack Overflow

stack overflow, part of stack exchange , is a free, community-driven, reputation-based q & a site for computer programmers.

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Stack Exchange

Stack Exchange is a fast-growing network of 84 [and counting] question and answer sites on diverse topics from software programming to cooking to photography and gaming.

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Quora

Quora.com is a question/answer service allowing users to pose questions that other users can answer, each question and answer can have comments, each users can write one individual answer and there can be a summary answer.

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Super User

super user, part of stack exchange , is a q&a site for computer enthusiasts that's free.

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Server Fault

Server Fault is a Q&A site for system administrators and IT professionals that's free.

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Yahoo! Answers

Yahoo! Answers is a way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

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askalo

In May 2017, askalo was relaunched as a free classifieds search engine for cars, jobs and real estate. The new askalo is available in a public beta version.

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Evi

Evi is a new digital assistant who is here to help with your everyday needs. Need to know where the nearest place to buy milk? She can help. Going out for dinner, but can’t decide where? She can help with that too.

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Wiki Answers

Answers.com: Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias. Ask questions, get answers.

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Experts123

Experts123 is a Question and Answer Encyclopedia that provides answers from an Expert community. Experts123 works to provide an answer to any well formulated question...

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BeenAsked.com

BeenAsked.com lets you search all the major questions & answers websites on the internet from one search box. Using this service can save you a lot of time and...

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Fluther

Question and answer service based on user profiles and a user score. Questions can be answered via the web page or via IM integration.

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