NetFang means "mail" in Icelandic and "fang of the net" in English. This system was developed internally for Inspeedia. It controls the mailing list, users and groups, and files (using NetFiles). It was developed in PHP using Yayahuic Framework, with an extensive use of jQuery and CSS3/HTML5. It additionally uses "drag-and-drop" to attach files to messages and template edition (with special variables).