Someone on the microsound mailinglist asked for online resources for minimal art. Here are the links he received:

Aspen the minimal issue
Aspen was a multimedia magazine from the sixtees. All issues are availible online. I allready mentioned it earlier.

A Forest from the Seeds of Minimalism:
An Essay on Postminimal and Totalist Music by Kyle Gann

Dolmetsch online
"Minimalism has also been called repetitive music, mediative music and process music. It was developed in the 1960's primarily in America and during the 1970's became successful in Europe as well"

Urban Sound
The minimal issue