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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 …

Online survey software & questionnaire tool. Powerful survey software to create surveys, collect responses and analyze results. Easy to use and feature rich! Free: 5000 initial Responses + 100 Responses...

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 …

Open source question and answer forum written in Python and Django

Shapado is an open source question-answer system written in Ruby, Mongomappe and Mongodb

A Q&A site helps an online community to share knowledge. No matter what your area of interest, people with questions can get super answers fast. Question2Answer is a popular Q&A …

Solace is a fully open-sourced multilingual support and knowledge exchange platform written in Python.

Forumlogr is a free service that helps you find interesting forum threads that were recently posted on the internet. We currently crawl hundreds of leading internet fora and index the …

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.

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