I'm getting tired of hearing people claim we're in a bubble, especially when people cite the Instagram deal. Instagram didn't have any revenues? So what. The value of a company is whatever someone is willing to pay for it.<p>Facebook's killer feature is their photo sharing. Given Instagram's surging popularity and mobile dominance, Zuckerburg saw Instagram as a threat, especially if Instagram fell into the hands of a competitor, like Twitter. So Zuck pulled out FB's wallet and scooped up Instagram.<p>I've been hearing people say we're in a bubble for at least 2-3 years now, yet venture firms are raising new funds every week. Acquisitions are happening every day, IPO's are ramping up again. Unlike the companies of the DotCom bubble, companies going public today have real business models, with real revenues, and <i>most</i> of them are already profitable. In 2000 there were companies going public that were still trying to figure out what their business model actually was. I guarantee you'd never see that today.<p>Sure, it may seem like it's easier to raise seed funding nowadays, but that's thanks to all the incubators that have popped up and the funding model pioneered by YC. That doesn't mean we're in a bubble. Angel Investors simply found a way to make seed funding scale in a way that reduces risk.<p>We're not in a bubble, and no, I have nothing to gain from saying that.