Dreamcast

Boob! Dreamcast Research
Resource for homebrew development and emulators.
http://www.boob.co.uk/

DC Emulation
Dreamcast emulation software and development. Multimedia players as well as emulators of older consoles playable on the Dreamcast.
http://www.dcemulation.com/

DreamVMU
A freeware VMU/VMS emulator for Windows.
http://www.eidolons-inn.net/tiki-index.php?page=Triton

lxdream
Open source emulator for Linux.
http://www.lxdream.org/