Linux offers so much for users to sink their teeth into that even among desktop and more casual users, it's easy to get caught up in the tradecraft. It's only too tempting to put your system's technical capabilities to the test by trying out a new program or practicing a new command. As with any other interest, though, Linux is not much fun unless you can revel in it with fellow fans and enjoy the camaraderie. Here's a short tour of some of the major cultural hallmarks of the vibrant Linux world.