Music Blogs

[Colorblind!]

There's tons of these surfacing, the blogs where uploaders just put up links to sharing websites featuring full albums and such.
I was curious if any of this is illegal?

[Matthew Tsai]

imeem.com

[Colorblind!]

I'm seeing alot of Usher and Rihanna news blurbs and not much to do with my question.
Is this illegal?
mesoglea.blogspot.com

[Kid B]

sordo