1 - Backtrack, website: http://www.backtrack-linux.org/
2 - GnackTrack, website: http://www.gnacktrack.co.uk/ (stopped)
3 - BlackBuntu, website: http://www.blackbuntu.com/
4 - Backbox, website: http://www.backbox.org/

and others distributions like:

- NodeZero: http://netinfinity.org/
- VAST
- Katana
- STD: http://s-t-d.org/
- Matriux: http://www.matriux.com/
- Arudius
- Pentoo: http://www.pentoo.ch/