Yes, the fear that a thread here wouldn't include lengthy discussion does seem well-founded.

Our favorite kickboxing Scotsman turned me on to Lost-in-Tyme (which is actually four different music blogs). I spend all my time on the funk/soul one of course, but the other three cover psych/acid/folk/garage, prog/kraut/classic rock/blues, and alt/punk/new wave. It's probably my very favorite thing on the internet.

Also good: Oufar Khan (funk, soul, jazz) and Voodoo Funk (obscure afrofunk/afrobeat). I recommend exploring the blogrolls of all three.

bluesy, some rock: http://diddywah.blogspot.com/
dance remixes http://palmsout.blogspot.com/
house sets: http://www.blentwell.com/
wonderful thematic eclectic: http://inkhornterm.blogspot.com/
African: http://awesometapesfromafrica.blogspot.com/
nissan papercraft: http://www.nissan.co.jp/EVENT/PAPERCRAFT/lineup.html

I like Ear Farm (eclectic, with a slight preference for avant-garde indie with a rootsy aura, aka Animal Collective), You Ain't No Picasso (lots of solo acts and big pop orchestras) and 3hive. Also the R3 30 (Canadians!), WOXY's Lounge Act archives (unpretentious rock bands who can be bothered to come to Cincinnati), and just randomly browsing through the Hype Machine (everything).

OT:
I just bought tickets for Old Crow Medicine Show. I'm very excited.

For hip hop, it's all about Nah Right.

I don't much read mp3 blogs, so all I can really recommend are Discobelle (fun new hip-hop, sometimes) and cut/copy's blog, which isn't even an mp3 blog per se, but I'll definitely post a mix in this thread later.

I enjoy WFMU's On the Download, which is all over the place (unsurprising, given the radio station) but focuses mostly on weird rarities and outsider music. (They repost from the 365 Days project, for instance.) You can hear music by the 12-year-old Bjork!

Oh, and before emusic, which distributes the Arhoolie label among others that have old blues, I listened to http://prewarblues.org/. For streaming audio, David Byrne's stream is my first place to go.

Mix of the Week and Deeprhythms have been two of my favorites for years now. MOTW describes itself as "soulful dance music"; the mixes are largely soul, funk, and world music. Deeprhythms is deep house mixes.

Not specifically an .mp3 blog, but a blog that always includes about 10 mp3s in a post:

http://thisrecording.wordpress.com/

For my alt-country/indie boy needs:

http://www.aquariumdrunkard.com/
http://www.theleathercanary.com/

Yeah, Mix of the Week! There's one my dad told me about in 2002, of all things.

I got annoyed when I downloaded about ten of them and then about two months later it turned out that they had been in a temp folder and were now gone, and were gone from the website too. I had spent a while picking out the right ones.

(thanks everyone, no time to talk more now)

This is actually a timely thread, as I just re-noticed yesterday that Salon killed their Daily Download feature, which occasionally had awesome stuff on it.

Ogged: M.Ward has a couple tunes that sound (to me) totally cribbed from Jackson Frank - the guitar work is uncannily like Tumble in the Wind. Just FYI.

I think I may have recommended it before, but Home of the Groove is good for New Orleans R&B and funk. I don't really check out mp3 blogs much, though. I should do it more.

M. Ward is a ripoff artist anyway.

I love the thread title. "Sounds Good". Ha!

Thanks, JRoth, I do know about M. Ward; I'll listen for the similarity.

Who has he ripped off, Ben?

Three other favorites: Different Waters, an eclectic collection of avant-jazz, improv, electronic, and various kinds of world-funk/dance music; Orgy In Rhythm, all kinds of funky soul jazz, etc.; and Raw Like Sashimi, which doesn't pretend to be anything more than a download dump. A good place for bubble gum pop.

Also, not to be missed. The archives at Archive.org have everything from Lou Harrison and John Cage recordings from KPFA to odd little netlabels who produce things like Partisan Songs.

7: Hooray! Cut Copy!

I don't check music blogs anywhere near as often as I should. Back when I did, I mostly liked Music For Robots and My Old Kentucky Blog. The first is a variety, but mostly indie dance/house music with some indie rock/pop, the second is indie rock/pop with smatterings of other genres. In a better world, I would also check the blog of Trouble & Bass regularly, as they're a label of great DJs and producers whose style pulls together a lot of hip-hop, breakbeat, house, and other influences. Some really nice mixes there.

Not a music blog, but Songerize is like a simpler version of the Hype Machine. If a band is recent and you're looking at their discography, you can listen to whole albums on it.

Who has he ripped off, Ben?

M. Ward kicked sand in Ben's face and stole his girlfriend. But Ben's gonna work out and go back and beat him up, and then he'll be the hero of the beach!

Might also be worth mentioning Songbird, an RSS reader designed for music blogs. Also DayTrotter is definitely worth a visit, although calling it a mere music blog seems kind of unfair.

Mostly blues and older rock and roll: MOISTWORKS : AN MP3
BOOMBOX

Moistworks has suffered greatly from Megan's loss. She'd post stuff like this

you ain't no picasso is probably my favorite, and old kentucky blog has its moments, though i eventually listened only to the songs that came with the (highly rec'd) tag, as there's just too much there. also every mix apo lovingly assembles.

spencer at golden fiddle usually has a good song posted at top right, which changes every so often. usually indie, soul, or classic rock, often live.

not sure he'll post any more, but there was generally good indie rock at central village.

more indie rock at stereogum, though more and more non-music posts as years go by.

great thread, btw. i always wonder what the kids are listening to these days.

I second Tom's mention of You Ain't No Picasso, that's a great blog.

I also like fluxblog, Said the Gramaphone, and Copy, Right? (which is a music blog "dedicated to cover songs, good and bad").

Also, if you're looking for music from a few artists, I've found that the easy combination of yahoo pipes and the hype machine feed is really powerful. I bet if you wanted to get fancier with pipes' "build your own pipe" module, you could probably do something even more intelligent than just filter by name...