Quora

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 …

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.

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

Social Q&A network! Send and receive anonymous questions, and find out what others think about you.

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.

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, …

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 …

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

Demolistic is a list-building community. Create, edit, share, and discuss ranked lists. If you disagree about the rankings on a list, you can create your own version of that list, …

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.