Deep within the famed Akihabara district of Tokyo is a club called MOGRA. It is an otaku-centric/akiba-kei establishment, focusing on anison and akiba-pop. Normally, this would be completely unremarkable, except that they stream their shows live on ustream, approximately from 2300 to 0500 JST. Apparently, they do one almost every day, but I usually just catch their Saturday shows.
Their schedule is up so you can figure out what they'll be spinning each night. Sometimes it's old (and I mean like 80s old) anison. Sometimes it's new (and I mean like last week new) anison. Sometimes it's all kinds of anison (like, the guy just made a transition from Touch to Eureka Seven). Sometimes it'll be Touhou or Vocaloid. Sometimes it'll just be electropop or some other club-ish music.