Group items tagged

"Explore 44,500 selected recordings of music, spoken word, and human and natural environments" from the British Library collection. If you're outside the UK, copyright limits this to 22,500 items. Still, some great recordings here.

"BlogTalkRadio is a provider of thousands of internet talk radio shows. Our streaming and archived shows are produced by anyone that wants to be an internet radio host."

Could be an interesting tool to create a 'class radio show'.