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Stack Overflow 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. Registered users...

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 …

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 …

Super User 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, …

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 …

askalo is a location-based Q&A community that lets everyone ask questions about any local topic and share answers tailored to individual needs. askalo is based on the idea that when …

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.

OSQA is the free, open source Q&A system you've been waiting for. Your OSQA site is more than just an FAQ page, it is a full-featured Q&A community. Users earn …

An obvious clone of formsping.me ( http://suse.me/apps/formspring/ ), ask.fm offers creating a profile URL that can be addressed by others users with questions. If the settings allow this, questions can …

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 …

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

Answerz.net 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 …

QsQs - это сервис вопросов и ответов, задавайте вопросы на любые темы и получайте практические ответы.

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.

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

Twithelp™ lets you use the huge Twitter community to get help with anything you want - simply and quickly. You can also help other people with things you know about, …

Amazon's Askville is a community where people love helping others by answering questions.

Answers is the place to go to ask questions and receive answers from the community at large on any topic. Connect with people who know the answers to your questions …

Slant is a collaboratively edited resource that helps you quickly make decisions. Instead of having to read multiple blog posts or dig through comment threads you can read summarized perspectives …

Тостер - онлайн сервис вопросов и ответов с открытой регистрацией. На «Тостере» можно получить ответ на вопрос по любой теме IT от участников сообщества, хорошо разбирающихся в этой теме.