Review the origins of techno on this great resource from the All Music Guide. Select "Rock" from the top menu on this site, then click on "80s" from the list of decades. Then, choose "Techno" from the list of 80s styles. This page describes techno’s distinct qualities, and breaks the movement down into sub-genre and artist. Log on and learn more about this style of music for the 21st century.
This short encyclopedia entry gives a brief explanation of what techno is and how this form of dance-music developed. It also provides links to articles on other genres of music and techno bands.