4chan is an English-language imageboard website.

Hacker News is a social news website focusing on computer science and entrepreneurship.

Lobsters is a technology-focused community centered around link aggregation and discussion

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

Slashdot is a news source for technology related news with a heavy slant towards Linux and Open Source issues.

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

Digg is a news aggregator with a curated front page, aiming to select stories specifically for the Internet audience such as science, trending political issue…

Hubski is a website community for sharing thoughtful information and conversation.

Minds is an open source social networking service.

Server Fault is a community QnA site about servers.

Snapzu is a community site.

Steemit is a social news service which runs a blogging and social networking website on top of a blockchain database, known as Steem.