I've been meaning to do this for a while but seeing this thread gave me the nudge to do it.
Post here with a link to your Glitch-related tumblrs and any forum threads here you may have about them, and I will add them to the list.
Glitchrock by Csophae
Glitchalia by diaveborn (thread (is locked, need new one))
Glitchglitches by lazulisong