http://www.nytimes.com/2008/03/10/business/media/10massify.h... http://www.nytimes.com/2010/08/20/business/media/20adco.html http://arstechnica.com/uncategorized/2008/12/first-internet-...
Massify started out as an idea for a viral video site, but after a lot of pivoting turned into a virtual production studio similar to what you are doing with your site.
One of the biggest problem for Massify was monetization. You seem to have the underpinnings of that covered with your distribution channels and your deal with godigital. I wish those things existed when we did (2007) and I wish our CEO at the time had the forethought and leadership to pursue those kinds of deals. That was actually the biggest problem we had (the CEO). He attempted to pivot us in so many different directions when it was apparent that monetization was going to be a hard problem to solve that we all eventually got sick of it and quit on the same day. It also had been 2+ years and I think we were all kind of burnt out (so much so that I refuse to do any kind of web development any more).
Another major problem we had was user acquisition. It's such a niche that I always thought it was silly to concentrate on the number of users and not focus more on getting distribution in place. Of course, I think we were a couple of years ahead of that curve. Had we held on awhile longer, I think we would have been in a prime spot to really make a success of it because we were the only site like that around at the time. We also had a lot of awesome technology sitting in the wings waiting for the non-technical part of the team to do something with it. But, instead, a lot of pivoting and a lot of money burning. So much money burning.
Anyways, love the site and good luck! Looks like you are off to the right start.