LEGO Mindstorms NXT Software v2.0 for Windows XP, Windows Vista, or Windows 7 and Macintosh OS X : The LEGO Group : Free Download, Borrow, and Streaming : Internet Archive
NXT-G: the development environment supplied with Lego Mindstorms, NXT-G
Lego Mindstorms Education NXT Software version 2.1 for Win/Mac digital delivey | eBay
Vernier NXT Sensor Block - Vernier
EV3 and NXT: Difference and Compatibility – Robotsquare
LEGO Mindstorms NXT: A Brief Introduction & Tutorial Part 2 - YouTube
Introduction to programming using lego NXT (video) | Khan Academy