I always think this is funny. Most people didn't see the housing crisis coming before it was terribly obvious to everyone. Crying bubble doesn't make you look like you're any good at predicting anything. The only danger of a bubble has to do with debt.

Most startups are funded by savings and while that savings can be wiped out no one is hurt after that hit. Businesses fail all the time and only when massive amounts debt is involved is anyone else (outside the people directly involved) affected.

A bubble would start to scare me if people started taking out massive loans to startup companies that had no hope to make money. I sometimes wonder about the quality of the companies that are able to raise money now but I'm not worried about them taking it. The investors will learn from their mistakes and hopefully we won't have as many daily deal sites for me to deal with. In the meantime I'm using Yipit to help me who also raised a decent amount of money I guess. Oh well.