This post is going to be short and sweet.
So Facebook is supposedly now worth $15b now that Microsoft has bought 1.6% for $240m - bullshit.
I don't know about you but even though I used Facebook at least twice a day I'm certainly not wedded to the platform and although there are no competitors out there on the market today I know that should something else come along that offers more functionality (and there is so much more Facebook could be doing..... a lot more) then I'll walk.
If given the choice between owning Ford (market capitalization of $13b on yesterdays closing) and owning Facebook I would take Ford each and every day because the barriers to entry are so much higher in the auto industry - for all Microsoft knows some kid is working on a Facebook killer in his parents basement and is ready to walk all over Facebooks $15b valuation.
What applications/websites are you absolutely wedded to and can't imagine something coming along that is an improvement?
(For me it's Plaxo)