Here's Why You Shouldn't Invest in Twitter - WSJ.com

Final paragraph of a Farhad Manjoo Twitter perspective piece

"But that doesn't change the fact that Twitter is a risk, a big one. If you bet on Twitter, you ought only go into it with the understanding that you don't know what will become of the company. You're walking into this deal nearly blind, because you have to, because Twitter is so young, so small, and so different that it's hard to know what to make of it. Sometimes such investments turn out to be huge. Other times you reach for the Maalox. Good luck."

Here's Why You Shouldn't Invest in Twitter - WSJ.com