@Beagle... I appreciate the effort but I think that's just referring to sending signals to the physical outputs. The MixControl software doesn't really control much except for monitoring (aside from selecting Line or Inst. for the multi ins). I have it set as my default device in Windows so I do get playback when using Media Player or Firefox but I'm pretty certain I have to physically attach the outputs to the inputs if I want to record anything like that. I actually had this discussion with Matt from Focusrite and he said without a physical connection it just wasn't gonna happen with the 18i6. The 8i6 however does do that. I may actually purchase one in the future because they are really inexpensive and it's a very nice feature. I also think I can daisy chan the two and have even more inputs VIA the optical connection (which I can also do with my Layla which is cool but I don't like the mic pres on it). Maybe he'll pop in and clarify. He's pretty good that way. Cheers.

i use an emu interface with patchmix software.

The wave signal comes into a strip, and is sent to sonar via an asio send.

Any audio coming into your computer from the web is already digitized/recorded. You do not need any audio interface, patch cord etc. whatsoever to capture it, just software that can intercept the stream and write a copy to a hard drive. 
I have Audacity installed on my web browsing computer for this. There are a ton of tutorials on how to do this with Audacity available via google. Basically you set up the source for Audacity to "stereo mix."

If your goal is recording a cooperating mate in a far away place, use an intermediate.  I did what I think you are thinking about with Indaba - they connect to it there with their computer, attach the gear/mics/etc to their interface, and hit record - on the indaba 'DAW' applet.  Then you can download the track(s) and import.  There are some benefits to this, I think, including sound quality.  When we start talking about general purpose audio streaming across the web, built-in sound cards, etc, you could be dealing with  both compression and (from our perspective) very low quality converters.  Something like indaba (and there are others) is made just for this kind of thing to avoid exactly these problems. 

Disclaimer 1:  It's been a couple of years since I did this, and indaba may have changed some, Idano. Also, I may have forgotten some details and may be oversimplifying just a bit.

Disclaimer 2: I had a great opportunty to do something like this with someone I really, really wanted work with, but could never get them up to doing even the basics of web-collaboration on their end - so it depends on your mates.

Either way, check it out if you like. I'd be glad to lend a hand when I get back to the studio, currently on the road....

@jm24... Gotta work with what I have. This thread did get me thinking about buying an 8i6 specifically for this feature and to have an extra two of the fancy Focusrite mic pres at my disposal. I can think of a lot cool stuff I could do with that on my own and it would allow me to record a full band properly.

@slartabartfast... I'll check out Audacity but that's a paid program isn't it? I was kind of hoping X1 could do this but I doubt it. It'd be weird trying figure it out too before it happens. I kind of need a quick way to do it with what I have. Thanks though. I'll definitely take a further look into that.

Audacity is FREE!

Grab Audacity

or Sound Forge 

Forge is more for pros.

@Michael Five... This is actually different than that and I have another plan culminating for that scenario but still need to learn more. It's just a live stream he's gonna be on and they're not gonna have the time to set something up in the studio. Just wanna snag the audio as it plays somehow... like in the old days of recording a cassette from the radio... except all extra fancy. I'm gonna try a couple of tests with the headphone output from my laptop and see what happens. It gives a pretty good signal for a cheapo Acer and I can clean things up from there. Cheers!

Should have refreshed... I got a call. Sorry. I will definitely take a look at Audacity then. Maybe I can get it working before this happens. Does it require a lot of resources? I'd prefer to run it on my lappy which is okay but it's not a powerhouse like my DAW system. Thanks, guys. Awesome thread. You rock.