PushdUp has been discontinued. Similar apps include Reddit, which has a free version. Other options are Hacker News, Quora, Digg and Aether. You can choose from more than 10 Q&A Services like PushdUp for the web, Android, iPhone, iPad and Windows.
An extensive platform for user-shared content and discussions, organized into niche 'subreddits' across numerous interests like news and video games, with a dynamic voting system influencing what appears on the front page.
United States
Hacker News is a social news website that caters to programmers and entrepreneurs, delivering content related to computer science and entrepreneurship.
United States
People come to Quora to ask questions about any subject, read high quality knowledge that's personalized and relevant to them, and share their own knowledge with others. Quora is a place to share knowledge and better understand the world.
United States
Platform for discovering, following, and engaging in topic-specific communities through content submission, voting, transparent moderation, anti-spam verification, web or mobile access, integrations, favorite pinning, and an optional AI-created podcast featuring trending stories.
United States
Open source, self-governing communities with auditable moderation and mod elections.
United States
Canada
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.
United States
Unsatisfied with the few link sharing communities that were available and their proprietary, untransparent and non-secure nature, ziq made the original raddle.me (then known as raddit.me) with Wordpress, but it had a lot of limitations.
France
EU
