z33k can search, download and play music (mp3) from the huge Dilandau, MP3Skull, Musicsearch.so and emp3world databases.
It can even manage "playlist-links".
These "playlists-links" files (.z33k) can also be shared with friends by the way you wish.
The .z33k format is only a text files including songname+url.
z33k can also play internet radios (Shoutcast).
You can also share links directly to your facebook or twitter account.
Easy to use and as a single small executable, z33k is portable.
You can run z33k from a cloud services (Dropbox, Box, SugarSync...) and download/share automatically your downloaded MP3 with your mobile devices.
Feel free to send reports or bugs... Thank !