Stack Overflow Stack Overflow, part of Stack Exchange , is a free, community-driven, reputation-based Q & A site for computer programmers. No... Free Web Android iPhone Q&A Knowledge base Add a feature 354 Like
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... Free Web Android iPhone Anonymity Q&A Q&A Add a feature 161 Like
Askme Startups get your queries answered by the World's Top Investors and Entrepreneurs. Startups + Investors +Entrepreneurs Connect. Free Web Q&A Add a feature 12 Like
Yahoo! Answers 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. Free Web Q&A Add a feature 13 Like
Bitfortip Bitfortip offers a unique use case thanks to Bitcoin. Use Bitfortip to: Find a item (i.e. a dress ) that you saw on a magazine,website, Pinterest or Instagram and... Free Web Android Q&A Add a feature 4 Like
Solace Solace is a fully open-sourced multilingual support and knowledge exchange platform written in Python. Free Open Source Mac OS X Windows Linux Web Knowledge base Q&A Add a feature 5 Like Discontinued Latest commit on Nov 29, 2009, see https://github.com/Plurk/Solace
Coordino Coordino allows you to create a question and answer system for you and your users to enjoy. Whether you are looking to create a niche question and answer site for... Free Open Source Linux Web Self-Hosted Q&A Add a feature 4 Like
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... Free Web Android iPhone Knowledge base Add a feature 2 Like
Curositi Curositi is an online community of people having a passion for searching, researching, learning new things and acquiring knowledge. Free Personal Web No features added Add a feature 1 Like
Shrtct Shrtct is a productivity tool for teams, providing in-context communication (chit chat free!) via Shrtct Hashes. It's great for preparing your team, making important... Free Personal Web Knowledge base Q&A Add a feature 4 Like
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. Free Open Source Web Android Android Tablet Q&A Add a feature 3 Like
AnswerCart AnswerCart provide a community platform to the businesses which can be integrated with websites or mobile apps. Using community, users can engage in Q&A, blogging... Commercial Web Customizable Q&A Add a feature 1 Like
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... Free Web Q&A Add a feature 3 Like
Experts Exchange The Mission Our patented knowledge-sharing process, combined with the advantages of the Internet, allow us to change the way people solve their technology problems... Commercial Web Q&A Add a feature 3 Like
