The term “web 2.0” is definitely (so is definitely) overused these days, but with it comes many social networking sites that fit every flavor. As far as music goes, there are countless networking sites available, including my favorite, Last.fm. Apple, not being one to be left in the dust, released My iTunes, a set of widgets which deliver functionality similar to social music networking websites. Since so many people use iTunes already, this kind of thing just makes sense.
There are currently three embeddable widgets to choose from. One shows recent iTunes purchases. Another shows music you’ve reviewed on iTunes. The last shows a sort of tag cloud of artists you’ve purchased on the iTunes store. The widgets can be customized by size and color.
Source: TechCrunch