demcra!

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 individual answer and there can be a summary answer.Each user can choose a description explaining their area of expertise or questions and answers can be anonymous.Questions and answers are searchable.

Hacker News is a social news website that caters to programmers and entrepreneurs, delivering content related to computer science and entrepreneurship.

News for nerds, stuff that matters. Slashdot (aka /.) is a technology-related news and discussion site with a focus on Linux, free and open source software and information freedom and privacy issues. The software it runs on, called Slashcode, is open source.

A social bookmarking website for visual contents — vi.sualize.us allows you to remember your favorite images around the web, and share them with everyone. Sometimes, you are looking through pictures and one of them catches your eye. You know you want to remember it and been able to look at it again in the future, but its not that easy: downloading to your hard disk is as useless as bookmarking the website in the usual way. This is where vi.sualize.us changes the rules. Within two clicks, you can quote the image reference in your account, and easily look at it whenever you want to. »

4chan is a simple image-based bulletin board where anyone can post comments and share images. There are boards dedicated to a variety of topics, from Japanese animation and culture to videogames, music, and photography. Users do not need to register an account before participating in the community. Feel free to click on a board that interests you and jump right in!

Hubski is a community for sharing thoughtful information and conversation. Here you can find interesting stories, ideas and events, and share what interests you with others.

LWN.net aims to be the premier news and information source for the free software community. We provide comprehensive coverage of development, legal, commercial, and security issues. The LWN.net Weekly Edition is our weekly summary of what has happened in the free software world; our front page offers up-to-the-minute coverage.

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

spreadit is a link aggregator and bullshit generator.

Snapzu is basically reddit alternative. It is a bit better looking, and the community is rather small so far, but growing. Official description: Snapzu is a platform for web content creation, aggregation & discovery, where users like you help provide content and decide what goes, what stays and what stands out by using community approval.

Echo JS is a community-driven news site entirely focused on JavaScript development, HTML5, and front-end news.