KDE is mainly known for producing the KDE Desktop Environment (used in Kubuntu) for Linux.
Professional online broker and trading community.
Support for Synology NAS devices and ideas for future versions of the DiskStation software.
Official Support Forum for Debian, the kernel-based open source operating system. phpBB provides a solid platform for support and discussion.
VirtualBox, developed by Oracle, is cross-platform x86 virtualisation software. It has become one of the most widely used virtualisation solutions in the world.
Discussion board for the massively popular xkcd web comic. Covering everything from Maths and Science to Logic Puzzles and Forum Games. Over 100k members and 2.4 Million posts.