What are your favorite blogs?  

Copy paste, cocy paste, copy paste ...
As a future furniture designer, I mostly hang around www.betterlivingthroughdesign.com and www.designspotter.com.
If I want some further inspiration besides just furniture I go to www.mocoloco.com or www.notcot.org. They both update very rapidly.

Music
I tend to stop off at some music related sites,
soulstrut,
waxidermy
and a few others
for politics
dailykos
americablog
Theres literally millions of "blogs" out there...truly good ones are difficult to find.

...
beside already mentioned 🙂 one really interesting is designobserver.com
there are dozen of others when you want just to see nice design stuff, but this one is full of interesting thoughs.
also /davidreport.com/blog/ is worth to check.

I love www.itsnicethat.com...
I love www.itsnicethat.com for graphic stuff

Ad heavy
I used to love Apartment Therapy, but in the last year they have become VERY commercial. First their layout became much more cluttered with banner ads, then they began changing the format of viewing the pages - making users click through several pages for a slide show, or click an external link to read a whole article. This promotes more clicks for the advertisers, but makes it much clunkier for the users. Their latest annoying trend is towards "sponsored" posts which dangerously blur the lines between advertising and editorial content.
TreeHugger is one of my favorites, as is NotCot, altho NotCot gets a little crafty at times. There are only so many times I need instructions for a knit uglydoll.
I also reaaaally love IkeaHacker. Lots of crazy people doing crazy things to their Swedish furniture.
http://www.ikeahacker.blogspot.com