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 Overflow is the most popular Web-based, Android & iPhone alternative to Aardvark.
- - Stack Overflow is the most popular free alternative to Aardvark.
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.
- - Quora is the most popular iPad & Android Tablet alternative to Aardvark.
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...
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.Discontinued
The answering and asking question features have been disabled since its parent company decided to discontinue the service. However, the website is still up as an information archive that is searchable in case if anyone has a similar question that exists within the archive.
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.Discontinued
looks like the service is discontinued, the page is no longer up and the twitter hasn't received postings since 2010Warning
Suspicious behavior when clicking homepage. Possible malware.