I'm sure I've mentioned this in the past, but I love blogging about bands on the SubPop roster. They have such a blogging-friendly website. There are almost always mp3 samples to download, and video too. Not to mention easy to embed press photos. Pay attention UMG, this is how you promote your roster in an internet age.
Blitzen Trapper - Furr video via YouTube
Free mp3 ---> Blitzen Trapper - Furr <--- Thanks SubPop
I highly recommend you head on over to their list of artists. Any of the names in bold are current and you will most likely find free samples to check out. You can also peep their YouTube channel to stream 134 vids.
Here's a couple of highlights from the aforementioned channel:
Fleet Foxes - Mykonos video via YouTube
This CSS jam is the most viewed video on the channel. Go Brazil!!
CSS - Let's Make Love and Listen to Death From Above video via YouTube
I always love the chaos, noise-pop of the Go! Team, even if this isn't my favorite track of theirs:
the Go! Team - Doin' it Right video via YouTube
This track has been played to death by now, but it's still a great tune that stayed our little secret for the first year or so it was out:
The Postal Service - The District Sleeps Alone Tonight video via YouTube