Listen to Shortwave Radio Online - with a powerful tuner
You can download a Software Defined Radio (SDR) tuner software from Sdr-Radio.com (I got the beta release 1.1) then go to their list of online tuners and tune a powerful radio for free!
If your browser tells you that you are doing something risky, ignore the warning (if you want this to work).
You can see a waterfall/spectrum view of the radio dial, tune it around, and listen to stations!
I'm loving this because I'm in Philadelphia and my next door neighbor has a very noisy electronic device (and also my whole neighborhood is very populate and bad for this).
This is what the software looks like. I'm listening to 6050 khz, Radio Habana Cuba in English, on a radio (RF Space SDR IQ) in British Columbia, Canada. This radio can show 180 khz spectrum at the same time.
The SDR IQ is a decent radio. I'm used to regular radios, so using a SDR takes some time to learn.
One neat thing is that you can see signals that you cannot hear. They will show up as a faint line on a channel where you might suspect there would be a station. On the other hand, it is also very difficult to distinguish between noise as the level of radio/electronic device noise has sky rocketed over the past ten years.
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Global Tuners
You can operate radios around the world through your browser as well at Global Tuners. You don't have to install any software and there is a wide array of radios to choose from.
Unlike a software defined radio, with these radios you don't get to see the radio spectrum - but they are still pretty neat.
This radio lets you view the
This radio lets you view the entire spectrum from 0 to 30 mhz HF Spectrum monitor and tune it. It looks like a customized interface which isn't as good as a software interface (but on the other hand doesn't need installation). They are also using a good radio and antenna.