Virtual Audio Cable
Full user review
"It's exactly what I'm looking for!"
If you're a streamer it helps with skype calls, desktop audio, music, etc.
If you don't have a natural stereo mix this is a great program.
Easy to use
No free version
The main website isn't put together well
A little too pricey
I've been looking for a program like this for months, and this one sadly isn't well publicized. I can see this being used for streaming alot. Sadly the "trial" version can't be used one real streams, because it spam says "TRIAL" approximately every 10 seconds. It's a good program, sloppy but it'll get what you need done.