[flom]

A lot of startups "like" Instagram already exist, but ONLY Instagram has 40+ million users, that's the difference. Just because 100 more startups get created in this space doesn't mean any of them will acquire a sufficient userbase to threaten Facebook.

[dkrich]

I'm thinking that his point (which I agree with) is that if a photo-sharing app with twelve people and no revenue can come from nowhere in less than two years to threaten Facebook's very existence, Facebook may not be worth $100 billion. I think the crux of this debate is whether you think Instagram was poised to become a real threat in the social space to Facebook. I think Facebook overreacted, and given this information (that Zuckerberg essentially bought it up himself) the disconnect from a realistic valuation seems even more likely. But then again, they may never get a chance to buy up companies with stock that possesses so much hype.

[alain94040]

True. But on the other hand, look at RIM (Blackberry) and Apple (iPhone). Any large incumbent can be displaced. They take longer to die because they have cash, but they die nonetheless.