The David Tudor website
Full of fascinating ideas about Tudor’s performance style, diagrams of some of the beautiful “scores”, and a lovely, lovely page of the wonderful tangles of electronics he and his collaborators have used. The story about setting the house speakers afire was particularly fun.

interesting material, where such topics do you find? I will often go
Mostly it’s just wandering about. I follow a lot of RSS feeds, some of which turn up items of interest; very often Ill find something simply by Googling around and seeing what turns up.