Unfortunately, due to the anonymity required, I've had to censor a lot of stories I'd otherwise share. Thus, these are more like anecdotes from my current startup.
I'd find more in-depth analysis of your startups mistakes interesting. I think that insight would be valuable.
Anything in particular you'd like to hear about? I'm being snarky on the blog, but the story about how we came up with our business model is true and the lack of vision combined with reasonable expectations is probably one of our biggest issues.
Have you spoken with others in the startup? Do they feel the same way? Have you told your boss this? You should, and either they hear you and try to learn from their mistakes, or they don't and you move on.