RSS-news feeds allows you to read headlines from different sites without having to launch a browser and visit the site,- all you need is a good newsreader. That way you can easily browse numerous sites (provided you know the RSS-newsfeed url) and only load those pages you find relevant. Finding those url's can be a bit difficult, but a quick google search should be able to provide you with some of the most popular ones.
Anyway,- it's now possible to generate rss-newsfeeds to the iTunesMusicStore. That way you can easily see when the store is updated. Check out the iTunesMusicStore RSS feed generator...
If you install Konfabulator and one of the newsfeed widgets, you can have a floating window open that keeps you updated with iTunesMusicStore...ehhh updates.