So I've come accross a new site called Muxtape! It allows you to create a playlist of up to 12 MP3s. You can then share your mix with others and retrieve it from almost anywhere with a simple link such as http://alix.muxtape.com/. I've also seen it associated with tags on flickr. I've yet to have an account with either site but maybe it's something all of you can enjoy.
Let me know what you think!