In a comment below, the Right, Honourable H. Trouser asks if I know of any all-afrobeat radio on the internets. Alas, I do not. However, I found this list of online stations in Africa and the Caribbean. I listened to a bit of Radio Palmwine this afternoon. They're based in Nigeria. The 20 min or so I listened to was mostly all hiphop (sounded good; nothing I'd ever heard of before) but the blurb says they also spin fuji, afrobeat, highlife, and more. I'll definitely be checking them out again. UNfortunately, they seem to be Windoze. I also listened to a bit of Iceberg Radio which has a nice eclectic world music station. It's an outsider perspective obviously and most of what they play I've already heard. So it doesn't have the thrill of discovery of something like Radio Palmwine. On the other hand, it's mostly music I like. And it plays in iTunes.