Customized iTunes Headlines

You can set up your own, customized RSS feeds from the iTunes music store using a simple configuration page created by Apple.

For example, here are the top 10 Rock or Alternative albums:
http://ax.phobos.apple.com.edgesuite.net/WebObjects/MZStore.woa/wpa/MRSS/topalbums/sf=143441/genre=000030000/limit=10/rss.xml

Just add the above URL into SlashDock and set the Site Main URL to: http://phobos.apple.com/WebObjects/MZStore.woa

I'd like to see some improvements, like support for Podcast listings, Mashups and TV Shows. But it's still a useful way to quickly see what's popular.