Why limit you choice to one country's FM stations? So many stations are streamed online already. Google "internet radio stations" for a list of portals and stations which should keep you busy for months...
Because I want to be able to scroll up and down the band and hear local commercials and weather and other things don't always play in international web cast. Plus that would require me finding the stations through google instead of just tuning the dial like a local would. I would also like to hear their interference to compare to other regions and sun spots.
You'll find more often than not, the web stream is a simulcast of the live, free-to-air channel, without any edits or alternate programming. This means you'll hear local ads, news, weather and traffic. The main reason is that many listeners might be outside of the broadcast area (or even travelling overseas), plus there are extra overheads involved for having an "internet only" broadcast crew employed at the station.
"Internet only" stations might be a different story, they might dynamically insert ads depending on where the listener is streaming from, but even then, most of the ones I listen to still play American commercials.
radio.net is a good website and there is also a smart phone application you can download (they dynamically insert ads at the beginning of the stream, but then revert back to the original stream). It seems to have the largest selection. If you have a Sonos or similar system, you can listen to radio.net channels without pre-roll ads.
Another is
iHeartRADIO which seems to be predominately Australia and the USA.
In Australia, some of the most popular radio stations are actually still broadcast on the AM (medium wave) band (such as
2GB) but as you know, the quality of AM radio is pretty poor and very prone to interference, so many listeners stream the station even if they are within the broadcast area.