Well I personally think a bubble is coming because we're busy creating products and services that don't produce revenue and value. Free markets generally work but can fail miserably when gone unchecked. That happened only a few years ago. And I personally believe it's irresponsible on the web.
My point and goal is for us, the workers of the web to recognize that and steer away from that irresponsibility, if possible. We don't need millions for another photo app, reading app or social network. Let's build something useful.