RapidShare is dead, long live
EvilShare.
EvilShare is much better than RS in that they don't keep track of who's downloading what. This means it's much safer to download questionable content with EvilShare than with RapidShare.
@Zhuinden:
If you just want to listen to music,
Songza is a pretty good way to do this. Otherwise, you could use
Skreemr, though I still have trouble figuring out how to download the MP3s I find on their site (you have to "save file as" on the file name, which isn't as obvious as it sounds when you actually see their interface).