Successes (and Some Growing Pains) at Hulu
nytimes.com
nytimes.com
I think a driver for consolidation into One Media Service To Rule Them All is that advertisers and content providers would get to see where else their viewers are going. One can imagine targeting different ads to viewers depending on their pattern of viewing -- oh look, they watch "Battlestar Galactica" on one network and they watch "This Old House" on another -- hm, home repair geek? Upsell the fancy cordless drill! Like the data mining credit card companies can do, except for content.
This benefit of cooperation goes beyond the 'greater reaach' argument in the article, and might help counter the pressures causing these companies to want to go it alone.