That's why we debate this subject everyday.

It's a hype and get all the garbages together, some of which were happened years ago.

There is nothing new to the market, from my perspective in terms of the platforms you mentioned. If you talk about SOA, ESB, visualization, BI, BPM and VON, MM or GIS, then they may have something behind it, more or less. But platform? then you can call them Web a million-th.

Don't give me the definition. That's the way some people are making living on, not what you are supposed to hype. If something can be built on Google engineering, then you know their life cycle.

Not convinced? Let me give you some criteria how to verify the viability of such a platform. If you just try to chase the hot potato, be my guest. But at least you need to act better than a 3rd grade to ask what's the hardware and software requirements to build each and every platform. What's the customer expectations and the platform performance. Without answering these questions, you would depend on luck to build your MeTube/HeTube/SheTube.