PushdUp is described as 'A user curated news aggregator site that focuses on high quality articles' and is an app in the Social & Communications category. There are more than 25 alternatives to PushdUp for a variety of platforms, including Online / Web-based, Android, iPhone, Android Tablet and iPad. The best alternative is Reddit, which is free. Other great apps like PushdUp are Quora (Free), Hacker News (Free), SaidIt.net (Free, Open Source) and Digg (Free).
Twincl is characterized by forum (including link sharing), Q&A, review and blog sites, using CommonMark as its writing format. Twincl features innovative Markdown editing, topic trees, voting/remarks, selected posts, senior authors, logarithmic scales, and more.
ForumPromotion.com; a bookmarking & social networking curation hub, but also the easiest way to discover new and interesting forums across the Web. Anyone can submit, vote up/down, and comment on links. The most trusted forum promotion platform & topic curation community.
Empeopled is a content-sharing community that Pays a dividend when people up-vote your posts and comments Gives you more influence based on the amount of up-votes you've received Empowers you to decide the site's future with the influence you amass.