i would think internet radio would be the best new frontier of
diversity. not sure of the technology/staffing/funding/legal
particulars. but the basic idea is enticing. if we have billions of
web-pages, whe should have thousands of radio stations on the
internet.

you could get really specialized that way, or completely eclectic. i
would think the economies and politics of not having to pay for a
high-wattage transmitter and not having to fight to get one of the
available am/fm frequency bands would be a huge plus. but maybe
having thousands of people all dialing into the internet site would
create a huge/expensive throughput situation for the content provider.