[Osiris]

Internet users from outside the United States are officially excluded from using Pandora to create their own radio stations with songs similar to the ones they have entered at the creation of the music station. Aggrega will surely profit from Pandora’s move although it does not offer the same service. By signing up with Aggrega you can create so called custom channels which are created automatically after assigning a name and a group, artist or genre to them. All videos seem to be taken from Youtube as of now which should not be a problem because I think they are added manually to the database.
I would not be able to explain otherwise why some bands are not found although their music videos are available at Youtube. After creating a channel you have the option to create another one or view the already created channels. If you choose the second option you see your channels on the left side and videos that have been found at Youtube on the right one.

You may now play each video, delete selected ones or add more videos to the channel. The most interesting option is of course the play video option. It lets you view the selected video, change the name, artist or album it is showing and rate the video and the artist separately. A new video is automatically loaded after the current one finished its playback. It is also possible to select one of the next upcoming videos which are shown on the left side with thumbnails, song name and artist name.
Aggrega is a nice service which is able to distinguish itself from Pandora by adding a visual component. The creators need to add more artists and songs to the database or improve the search script that searches Youtube and finds the music videos. It is no problem to find well known artists such as Madonna, Blur or Silversun Pickups but it becomes problematic if you search for lesser known artists.
found at mashable.