No posts since 2011 on MixtapeMixtape, but some damn sweet recordings there:
http://mixtapemixtape.wordpress.com/
Fluokids is good for emerging electro (plus their french back-announcing is cool)
http://fluokids.blogspot.com/
Live Set DB is freaking sweet for live recordings of largely electronic and hiphop tunes:
http://lsdb.nl/
