Liveplasma

The site allows you to search for your favorite band, movie, director, or actor, and based off of what you specify, a map will be created of similar items that may interest you. I tried a wide variety of queries, and each time, the results were comprehensive and very appropriate. In fact, it's a safe bet that you're sure to be interested in the majority of what they present to you. Links are provided to the items that may interest you, and this makes further research and purchasing a breeze.