Stack Overflow, part of Stack Exchange , is a free, community-driven, reputation-based Q & A site for computer programmers ...

Humbot helps students to better understand school subjects when they are stuck with homework or test prep by providing a 1-to- ...

Super User, part of Stack Exchange , is a Q&A site for computer enthusiasts that's free. Free to ask questions, free to an ...

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.

Yahoo! Answers is a way to find and share information. You can ask questions on any topic, get answers from real people, and s ...

Quora.com is a question/answer service allowing users to pose questions that other users can answer, each question and answer ...

Server Fault is a Q&A site for system administrators and IT professionals that's free. Free to ask questions, free to answ ...

Scoold is inspired by StackOverflow and implements most of its features. You can ask and answer questions, upvote and downvote ...

Steemit gives users monetary rewards for any meaningful contribution to the platform. Of these contributions the most importan ...

Reddit is a social news site allowing users to submit articles, vote on them, and engage in discussions. Like other social new ...

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 ...

Stack Exchange is a fast-growing network of 84 [and counting] question and answer sites on diverse topics from software progra ...

Slant is a collaboratively edited resource that helps you quickly make decisions. Instead of having to read multiple blog post ...

Prismo is not yet production ready so please don't try to host an intance yet! I will not be able to provide you any support w ...