Vin: the biggest issue with any workplace online bans comes quickly to the point that companies are very very bad at measuring actual worker output, and instead reward 'busy-ness' and facetime. I would like to think that the global labor market will help work this out as less productive workers get outsourced... but companies should spend their time on measurement, not second order policing.
We're still a long way off from the madness of 1999-2000, but certainly a deal like this does raise an eyebrow or two with the potential legal overhang. Mark Cuban's blog is worth a read on YouTube-Google - the original bubble-video-stream-guy from way back when. We do, however, inhabit a very different online marketspace today, one where there are real advertising revenues available and where the big competitors have more than multiples-of-pageviews valuation metrics going for them. There's actually something at stake. All that being said, it's a whopper isn't it?
I have to agree that medium and long-term though, online is still underhyped, scary as that is to say!