Slant Community’s guides to all the best stuff.

Super User is a Q&A sites for system admins.

Yahoo! Answers is a community-driven question-and-answer (Q&A) website.

Niftio is a presentation app that offers its users all the necessary resources they need to become the presenters they secretly crave to be.

Question2Answer is a free and open source platform for Q&A sites.

Stack Overflow is the largest online community for programmers to learn, share their knowledge, and advance their careers.

Reddit is an social news aggregation, web content rating, and discussion website.

Wooclap is a collaborative platform for your conferences and your training sessions.

Quora is a question-and-answer site where questions are asked, answered, edited and organized by its community of users.

Server Fault is a community QnA site about servers.

Stack Exchange is a network of question-and-answer websites on topics in varied fields.

Pubble provides real-time messaging to drive customer engagement.

OSQA (Open Source Question and Answer) is an open source question-answer system written in PythonLearn More with Django.

Glisser is an online platform that allows you to create interactive presentations that can be used for marketing, training.

AskBot is a Django/Python Q&A forum.