...very nice dj called till von sein who's making loads of his music available on soundcloud.
soundcloud is pretty interesting because you buy kind of virtual tape which means that you can store music online and listen to it everywhere (where fast internet is available) and it is only limited by time.
e.g. you get a 120 minutes tape then it would be possible to store 120 minutes of loss-less super high quality music online. the size of the files doesn't matter at all it even could be giga bytes.
soundcloud is a company from sweden situated in berlin and they hire webdevelopers so check em out if you're interested.