How do I listen to song samples on the iTunes website in Ubuntu 10.04?
In Firefox or Chrome I can confirm that clicking on the play icon does not do anything. However when you display the page source your are able to see direct links to previews in plain non-encrypted m4a format. Open these links in your browser and they will play if your audio plugin is capable to play m4a.
I suspect some broken Java implementation responsible. Maybe there is an addon anybody knows of?