The top Linux video camera security and surveillance solution.
ZNC is an Internet Relay Chat (IRC) network bouncer or BNC.
Apache Subversion is a full-featured version control system originally designed to be a better CVS.
Headphones is a SABnzbd add-on that automates your music downloading. Import all your favorite artists from iTunes, and watch for any new albums be released.
Like the hand-held calculator, but it runs directly in your browser. A must have for any advanced math student.