Amazon just released a MP3 widget featuring samples from selected music from their MP3 store, with buy buttons. That means money for you, since it’s an Amazon Associates thing. A must for music bloggers perhaps? That is, assuming you operate in an area where you can shop music from Amazon. That doesn’t include Europe, I’m afraid, it’s US (and maybe Canada?) only.
Thord Daniel Hedengren is a designer, writer, and blogger, and also the former editor of The Blog Herald. He used to be a hotshot in the gaming industry in Sweden, but sold everything and went International. Most recently he wrote a book called Smashing WordPress: Beyond the Blog, and does loads of kickass design.