There are some streaming options, but what are you looking for? Music? News? Different sites cater to different interests, so knowing what you're looking for can make a good start.
I'd check out stitcher for talk radio. I don't know if they'll have anything that you're looking for, but they might. If you can find a website that has audio running through a quicktime stream, you'll be able to listen to that as well. As for 80's music, well, that's not really my thing, so I can't help you there.
If you have jailbroken your iPod (and who hasn't!), then you can get iRadio and its an app you install on your iPod and can tune into a bazillion streaming radio stations.
If you have jailbroken your iPod (and who hasn't!), then you can get iRadio and its an app you install on your iPod and can tune into a bazillion streaming radio stations.