Nearly four years ago, Microsoft (MSFT) invested $240 million in Facebook at a valuation of $15 billion. I’m pretty sure that’s the first time people began publicly worrying about another Internet bubble, and it’s been a slowly crescendoing chorus ever since. Well, until the recent market tumult seemed to render such concerns uncouth at best and asinine at worst.
Quoted from Internet bubbles: Of truth and consequence on internet – Yahoo! News Search Results