You can broadcast on Mixlr, too:
http://mixlr.com/
Here You can read how to do that:
http://support.mixlr.com/
It can be done via the SoundCloud-API and via the Mixlr-App, which can be downloaded from Mixlr.
Showreels are only saved, if You broadcast via the Mixlr-App. "Stereomix" is very important as "Input".
How to enable "Stereomix" can be read here:
http://www.stereo-mix.com/stereo-mix-issues/enabling-the-stereo-mix-under-windows-vista.html
If You follow these steps and You still see no "Stereomix", then You have to check, which soundcard do You have, and You have to do a web search for the manufacturer and download the driver.
After installing the driver You have to reboot, then follow these steps again.
The harddrive in my PC had to be replaced, and I have 2 new internal harddrives now. We have discussed also in these 2 threads:
http://forums.winamp.com/showthread.php?t=366311
http://forums.winamp.com/showthread.php?t=345952
Some people have rebooted again after setting "Stereomix" as default device. I had to switch to another recording device and back to "Stereomix", then finally Milkdrop 2 in Winamp began to react to the music from the websites (with the URL "linein://").
Why does the basic Microsoft installer not have this feature? It would be much better, if this feature would be included also there.
If You have questions about broadcasting on Mixlr and enjoying the Winamp Visualizer with other soundsources, You can ask me...