A little while ago during Web 2.0 in New York, I expressed my sense of deja vu about being at a large Internet conference while the markets were imploding. If anything, this sense has deepened over the last couple of weeks. Not so much because there has been more volatility in the markets than ever before, but because there is such a wide range of attitudes among startups about the depth of this crisis and what it means for them. During the dotcom collapse there was a surprising number of ent...