Stack Overflow, part of Stack Exchange, is a free, community-driven, reputation-based Q & A site for computer programmers. No membership is required to ask questions or provide answers to questions by others.

Aardvark is described as 'Ask questions, get live answers from your network! Aardvark finds the perfect person to answer any question in real-time' and is a Q&A service in the education & reference category. There are more than 10 alternatives to Aardvark, not only websites but also apps for Android, iPhone, Android Tablet and iPad. The best Aardvark alternative is Stack Overflow. It's not free, so if you're looking for a free alternative, you could try Stack Overflow or Stack Exchange. Other great sites and apps similar to Aardvark are Super User, Server Fault, Answers.com and Fluther.
Stack Overflow, part of Stack Exchange, is a free, community-driven, reputation-based Q & A site for computer programmers. No membership is required to ask questions or provide answers to questions by others.

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. We are an expert knowledge exchange: a place where physics researchers can ask each other about quantum...




People come to Quora to ask questions about any subject, read high quality knowledge that's personalized and relevant to them, and share their own knowledge with others. Quora is a place to share knowledge and better understand the world.




Super User, part of Stack Exchange , is a Q&A site for computer enthusiasts that's free. Free to ask questions, free to answer questions, free to read, free to index, built with plain old HTML, no fake rot13 text on the home page, no...


Server Fault is a Q&A site for system administrators and IT professionals that's free. Free to ask questions, free to answer questions, free to read, free to index, built with plain old HTML, no fake rot13 text on the home page, no scammy google-cloaking tactics, no...

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

Question and answer service based on user profiles and a user score. Questions can be answered via the web page or via IM integration.
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 by any means possible.
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 effort trying to find the answers you are looking for. BeenAsked.

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.
