If you would like to follow music blogs, play some songs first before downloading it, and see them organized in a separate frame as you skim through a webpage, I suggest you get
Songbird, which I use and is free, compatible with both Mac or PC, OR
Peel (Mac only), which has a free trial but I've heard good things about it too. Also, it's probably more stable than Songbird, though I like the look of the latter (you can customize it too!).