PBS Off Book have recently put online a video explaining what this whole glitch art thing is about.
Shout out to Vade/Anton Marini and Daniel Temkin, whom I met at GLI.TC/H in 2010, who feature in the video. Daniel Temkin also mentioned, at 4:40, Glitch Safari, a project started by myself and notendo/Jeff Donaldson.
Go watch it!
p.s. PBS, ever heard of Creative Commons licences?! Thanks, guys!