It's well past time for a new update. I'm getting slow in my old age.
1/28/2009: Added AQUA@Home, FreeHAL@home and UCT: malariacontrol.net. Updated links and status for 3X+1, Belgian Beer, BURP, CELS, Chess960, Cosmology@Home, DECS, DistrRTgen, Docking@Home, Enigma, Ibercivis, Intelligence Realm, malariacontrol.net, MindModeling@Home, Nano@home, NanoHive@home, Pirates@Home, Poem@Home, Predictor@Home, Proteins@home, GPUGrid, QMC@Home, Renderfarm, Reversi, Riesel Sieve, Spinhenge@home, Tanpaku, Traveling Salesman, WEP-M+2 (wanless), Yoyo@home, Zebra RSA, and Zivis Superordenador Ciudadano.