I've been using Muxtape and have been pretty happy with it. But I agree with David (@1) that it needs some more functionality. The ability to comment and share more easily seems like a no brainer. That would make the whole process of sharing music even better. I hadn't tried MixWit... but I'm loving that interface. And the ability to embed anywhere is nice. Again, something Muxtape should be thinking about... - adam christensen from FriendFeed MT Plugin

You are so right: "Mixtapes used to be something you put a lot of time and effort into, typically making one copy to give to one other person". Now days it became easier and much more fun to make, and then share not only with one person but with the rest of the world. It is so much fun to browse and find interesting Mixtapes that other prepared. For the cool retro interface design MixWit is a big winner and recently they added the useful mark tape as favorite feature. I recommended MixWit to few people and got them hooked... - efimor from FriendFeed MT Plugin