Stack Overflow

stack overflow, part of stack exchange , is a free, community-driven, reputation-based q & a site for computer programmers.

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Stack Exchange

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.

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Quora

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 there can be a summary answer.

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Question2Answer

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 solution.

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Askme

Startups get your queries answered by the World's Top Investors and Entrepreneurs. Startups + Investors +Entrepreneurs Connect.

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AskBot

Askbot is a Q&A system, like StackOverflow, Yahoo Answers and some others. Askbot is based on code of CNPROG, originally created by Mike Chen and Sailing Cai and some code written for OSQA.

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OSQA

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.

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Shapado

Shapado is a questions and answers site for your enterprise or community, your “knowledge base on the cloud”. It makes sure questions never get asked twice by making the information flow.

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Solace

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

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Inqwise

Online survey software & questionnaire tool. Powerful survey software to create surveys, collect responses and analyze results.

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Shrtct

Shrtct is a productivity tool for teams, providing in-context communication (chit chat free!) via Shrtct Hashes.

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QueryHome

QueryHome is a Knowledge Social Network for people to come together and ask technical doubts and contribute by answering questions, solving doubts and writing articles.

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Boardest

Boardest.com is a forum, question/answer and link sharing service allowing users to ask questions, open discussion threads and share links that other users can comment and contribute.

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AllAnswered

AllAnswered.com is a free hosted service for any community to build their own Stack Overflow-like Q&A board. Check it out to see how easy it is to have your own Stack Overflow.

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Answers

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...

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Tesse

Tesse is an expert search engine which allows you to search and connect with global experts by a keyword of skills or expertise. It is an on-demand platform for...

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Curositi

Curositi is an online community of people having a passion for searching, researching, learning new things and acquiring knowledge.

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Askalot

Askalot is a next generation CQA (Community Question and Answer) system.

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Ihavesolved

I have solved is Question and Answer website. If you register, you can ask questions and give your answers.

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