When you find a category that is bursting with the type of music you love, you can add it to your favourites so it's always handy when you need it.
To add a category to your favourites just click the little 'heart' icon at the upper right of the catelogue page illustrated below:
Once you've added a category to your favourites, it appears in your favourites link on the left hand side of the page illustrated below:
You can also keep your favourites organised. If you no longer feel a category is suited for your favourites you can easily remove it. Just click the 'Your Account' tab and select 'Your Favourites'. Click the 'X' button to delete the category from favourites, illustrated below: