It lives.
After 16 years Quake is still alive, with active tournaments, lan parties and just friendly matches. If you fancy getting started or reliving this classic game its very easy here are some websites.
www.quakeworld.nu - The main scene website find out what is happening on the scene latest quake builds or ask for help, the quake scene is the friendliest you will find anywhere.
www.nquake.com - This is where you can download a installer package which will install the game with some extras like updated weapon models, player skins and maps. recommended for a new player and is available in linux, osx and windows.
If you need help with anything you can ask on qw.nu, or join #qwrookie, #quakeworld. via internet relay chat and ask there for instant answers.
Thanks John