The online radio Lizzar just launched, is even still in beta but got great features.
Like most up to date online music and radio sites Lizzar has social networking functions and listeners are able to write reviews. What is different is the way one chooses the stations aka music, which indeed reminds in some way on choosing a station on a radio. Choosing a station starts with the genres. After this one is able to choose regions and languages. This path is uncommon but convenient and most interesting in the case that you want to listen to a genre and wants to know how this music genre is celebrated in a particular region. One or two clicks more and the radio starts playing.
Further feature are available to members, which are able to save their settings. Doing this for different choices will get you a personalized online radio with various stations based on genres or locations and the like. To learn more and listen to some music visit Lizzar.