The Vault

Japanese Music: Experimental, Electronic, Indie, Hardcore, Metal, Jazz, New Wave, Pop, Punk, Rock, Visual Kei. Picopop. Massive Blog.
http://voodoovault.blogspot.com/

Lifer

A lot of great stuff here in various categories. Modern Shibuya-Kei, Prog, Rock, Power and Black Metal, Electronic, Experimental, Jazz
http://liferthereviewroom.blogspot.com/

Barbarism Begins at Home

Lot of great vintage (80's to current) Indie and Alternative with the occasional Hip-Hop and Electronic thrown in
http://lunchmatic.blogspot.com/

The Unheard Music

From experimetal to rock and electronic. Some interesting unheard of tapes / outtakes too.
http://unheard78.blogspot.com/

Serious F*cking Business

Ambient, Black Metal, Electronic, Free Jazz
http://seriousfuckingbusinessindeed.blogspot.com/

Speakershock

Nice selection of Electronic, Downtempo, IDM, Hip Hop, etc
http://speakershock.blogspot.com/

This is the Universe

Don't expect new uploads but has a great fresh archive. Electronic, Indie, and Pop
http://thisistheuniverse.blogspot.com/

Musical Coma

All over the place in a very good way. Nice uploads, recent albums.
http://musicalcoma.vlsweb.net.br/

Earpussy Heaven

Chillwave, Witch House, Electronic
http://earpussyhm.blogspot.com/

Stars of the Loophole

Ok a new blog featuring only free non-label artist releases that are worth checking out. My new blog, some good music, and a blog that should hopefully grow.
http://starsoftheloophole.blogspot.com/

Dats My Sh*t

Experimental, Indie, and Electronic
http://datsmyshit.blogspot.com/

Dromoscope

Electronic and Indie.
http://dromoscope.blogspot.com/

Hopeless Sound

Industrial, Electronic, Ambient, Dubstep
http://hopelesssound.blogspot.com/

MusicNes

Chiptune, Breakcore, Electronic
http://musicnes.blogspot.com/

Pirahna Party

Chiptune, Breakcore, Metal, Indie and More
http://piranhaparty.blogspot.com/

3 brain karnak interloper

Experimental, Noise, Ambient, Drone, Electronic
http://3brainkarnakinterloper.wordpress.com/

Synthetic

Modern Synth Pop, EBM, and Electronic
http://vesp-synthetic.blogspot.com/

Flashing Light Will Blind Us

Indie, Experimental, Electronic, lots of good uploads
http://flashinglightwillblindus.blogspot.com/

ClubMusic.DJ

Funky & Deep House
http://community.livejournal.com/clubmusic/

Sasharetroemporium

Lotta newish Dj mix comps
http://sashasretroemporium.blogspot.com/