Quora!

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. We are an expert knowledge exchange: a place where physics researchers can ask each other about quantum entanglement, computer programmers can ask about JavaScript date formats, and photographers can share knowledge about taking great pictures in the snow.

Slant is a collaboratively edited resource that helps you quickly make decisions.

Steemit gives users monetary rewards for any meaningful contribution to the platform. Of these contributions the most important are:- Creating or posting content which the other users consider valuable (like)- Finding valuable content and upvoting it

Super User, part of Stack Exchange , is a Q&A site for computer enthusiasts that's free. Free to ask questions, free to answer questions, free to read, free to index, built with plain old HTML, no fake rot13 text on the home page, no scammy google-cloaking tactics, no salespeople, no JavaScript windows dropping down in front of the answer asking for $12.95 to go away. You can register if you want to collect karma and win valuable flair that will appear next to your name, but otherwise, it's just free. And fast. Very, very fast. »

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.

Server Fault is a Q&A site for system administrators and IT professionals that's free. Free to ask questions, free to answer questions, free to read, free to index, built with plain old HTML, no fake rot13 text on the home page, no scammy google-cloaking tactics, no salespeople, no JavaScript windows dropping down in front of the answer asking for $12.95 to go away. You can register if you want to collect karma and win valuable flair that will appear next to your name, but otherwise, it's just free. And fast. Very, very fast. »

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

Bitfortip offers a unique use case thanks to Bitcoin.

Grow your audience with a custom news community. Users can signup, submit links, like them, and comment. Style the look and feel of your community to match your brand. Use any domain or subdomain you wish for your community. Free and easy.

Scoold is inspired by StackOverflow and implements most of its features. You can ask and answer questions, upvote and downvote posts, earn badges and reputation. Each edit creates an new revision, making it easy to follow the history of edits. Scoold is optimized for the cloud. You can simply click the 'Deploy to Heroku' button and get up-and-running in minutes. You can deploy it to your favorite PaaS, too.

Answers.com: Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias. Ask questions, get answers.

Linkibl is where you can discover and share the Internet'smost interesting content every day.

A user curated news aggregator site that focuses on high quality articles.

TopTopic is an online community where members earn revenue from their posts, comments and moderation activities. Rather than run ads, we use member up-voting (no down-voting) to both raise the exposure of content, and drive revenue to the creators.