Disruptions: If It Looks Like a Bubble and Floats Like a Bubble ... - NYTimes.com

Sign of the times

"Such assurances aside, the numbers are sobering. Eight months ago, Snapchat was valued at $70 million. Today, it is valued at $4 billion, even though it has zero revenue. Six months ago, Pinterest was valued at $2.5 billion. Today, it is valued at $3.8 billion — and no revenue there, either. And last week news broke that Dropbox was said to be seeking a new round of funding that would value the company at $8 billion, up from $4 billion a year ago.
In Silicon Valley, pointing out this sort of thing is considered a bit impolite."

Disruptions: If It Looks Like a Bubble and Floats Like a Bubble ... - NYTimes.com