[RBr]

Google Trends monitors search terms, not traffic. The Google Trends graph is relative to the total search volume for the keyword Quora.

Web traffic is a very different thing. It's how many people actually visit a site. Here's an estimate of Quora's traffic: http://www.quantcast.com/Quora.com

You can see that while they've experienced a significant peak in traffic that has resulted in a recent decrease, they're doing very well.

[erik_p]

^^^ I came here to say this. With that said, I'm a little sick of the quora hype. I have a love/hate relationship with the UI decisions they made. I haven't had a ton of luck with the questions I've asked on the site, but I have found it useful when researching existing (answered) questions. Although those questions tend to be very valley/startup centric.