Calbel is described as 'Join communities based on your interests' and is an website in the News & Books category. There are more than 10 alternatives to Calbel, not only websites but also apps for a variety of platforms, including Android, iPhone, Windows and iPad. The best alternative is Reddit, which is free. Other great sites and apps similar to Calbel are SaidIt.net (Free, Open Source), 4chan (Free), Digg (Free) and Aether (Freemium, Open Source).
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.