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/

Minipopcube

A lot of Japanese, Lounge, Bossa Nova, Pop, Jazz, Nu-Jazz.
http://minipopcube.blogspot.com/

UTVAER

Free Improv, Krautrock, Ambient, Experimental, Free Jazz and in FLAC
http://utvaer.blogspot.com/

Serious F*cking Business

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

Steal With Me

Lot of genres here. Avante-Garde, Ambient, Classical, Folk, Jazz, Psychedelic,
http://stealwithme.blogspot.com/

Boxes of Toys

70's Prog, Jazz, Kraut-Rock, Experimental,
http://boxes-of-toys.blogspot.com/

From Here On it Got Rough

mostly pop; modern and old, jazz, schlager and "world music".
http://fromhereonitgotrough.blogspot.com/

Rafter Lights

Lotta different stuff. Nice consistant output of albums you usually won't find in other places.
http://rafterlights.blogspot.com/

Enjoy the Best Smooth Jazz

Smooth Jazz
http://enjoythebestsmoothjazz.blogspot.com/

Rare & Groove Jazz

Jazz-Funk, Acid Jazz, Soul, and rare Groove
http://rarejazz.blogspot.com/

Afrofunkybrassjazz

Latin Jazz, Funk, Jazz Funk and more.
http://afrofunkybrassjazz.blogspot.com/

Mundodastrocas

50's and 60's Rock & Swing + bits of newer and older gems
http://mundodastrocas.blogspot.com/

Forest Roxx

Indie, Jazz, Experimental, New Wave, and more
http://forestroxx.blogspot.com/

A Special Plan For This World

Noise, Jazz, Ambient, Industrial, Drone, Experimental
http://a-special-plan-for-this-world.blogspot.com/

Jazz Schmazz

Lotsa good Jazz and Fusion
http://jazzschmazz.blogspot.com/

Jazz Archives

Huge Jazz Blog. Lots of Essential Artists
http://jazzarchives.blogspot.com/

Spa & New Age Music

New Age Music and a bit more
http://spanapara.blogspot.com/

Ariel's Groove

Jazz and Nu-Jazz
http://arielsgroove.wordpress.com/

Urbanology

Hip Hop, World, Jazz, and more
http://urbanology.wordpress.com/