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. Registered users collect 'karma' by participating, and can subsequently up- or down-vote answers by other users, leave comments and edit content in a wiki-style fashion.
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 fu ...
QueryHome is a question-answer platform, which helps you to get answers of your technical problems in a social setup. QueryHom ...
Tesse is an expert search engine which allows you to search and connect with global experts by a keyword of skills or expertis ...
Startups get your queries answered by the World's Top Investors and Entrepreneurs. Startups + Investors +Entrepreneurs Connect.
Programming forums
Yahoo! Answers is a way to find and share information. You can ask questions on any topic, get answers from real people, and s ...
A Q&A site helps an online community to share knowledge. No matter what your area of interest, people with questions can g ...
Quora.com is a question/answer service allowing users to pose questions that other users can answer, each question and answer ...
AllAnswered provides an all-in-one knowledge management system including an advanced Wiki and Questions & Answers (Q&A ...
Askbot is a Q&A system, like StackOverflow, Yahoo Answers and some others. Askbot is based on code of CNPROG, originally c ...
Scoold is inspired by StackOverflow and implements most of its features. You can ask and answer questions, upvote and downvote ...
The Mission Our patented knowledge-sharing process, combined with the advantages of the Internet, allow us to change the way p ...
If you are a person with good knowledge just drop your answer to the questions. Share the knowledge. We are here to help the w ...
asktopia is a global network for business professionals to ask and answer questions about real world problems they need to sol ...
What If? HQ is your one-stop HQ for "What if..." questions. This is where people like you ask the questions ...