Social Media is here to stay I think. In my own little experiences I am already being given offers. Offers that by the way are more in the realm of SEO material. The links in this article are fantastic and as always David you just say what's on your mind. I admire that a great deal.
Facebook's finances aren't great at all as you point out the article from all things good. The ROI for Facebook really is below anything else that I have tried. Facebook is not the giant people think they are. This is from an advertiser's point of view.
I have to say that I am having a blast with social media marketing. There's a lot of fluff in it and lots of fake people on SEO sites that don't even exist, but for the most part the social media arena is a fun one.
The only thing that can kill it is crap like Twitter, that I am now using for one of my own networks. The more we come out with these neat little applications, the more of our time is lost. Twitter this and that and before you know it you really do have no life at all.
Like anything social media will evolve and as they say, only the strong survive. I just know that you David will be standing tall and all the more wiser and wealthier in a years time.