iButton: http://www.iButton.com      This is the main website for iButton technology

The Keyless Lock Store: http://www.nokey.com/853111/elstrikandma.html      Electric Strike lock panels for easy conversion of doors to electric door locks

Tecnologia Aplicada: http://www.aag.com.mx/visor.html      iButton Vistor plug-in

SecurityIdeas.com: http://www.securityideas.com/networkcameras.html      Remote controlled pan and tilt cameras

Messy Board: http://www.cs.cmu.edu/~afass/messy/      Messy Board

GPS Tracking: http://www.gpsvehicletracking.net/      EarthTrak Realtime GPS TRacking systems