ThatsJavaInfo is described as 'A place to learn Java and its high end technologies'. There are more than 10 alternatives to ThatsJavaInfo, not only websites but also apps for a variety of platforms, including Android, iPhone, Windows and Linux. The best alternative is Reddit, which is free. Other great sites and apps similar to ThatsJavaInfo are Hacker News (Free), SaidIt.net (Free, Open Source), Digg (Free) and Aether (Freemium, Open Source).
Reddit (stylized in its logo as reddit) is an American social news aggregation, web content rating, and discussion website. Registered members submit content to the site such as links, text posts, and images, which are then voted up or down by other members.
Uncensored free speech alternative to the extreme Reddit and Voat forums, democratically civilized by Graham's Debate Pyramid, no illegal transactions nor porn. Truth-seeking anti-corruption news are among the popular themes. Android app, iOS soon.
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.