With respect to the poll asking the same question about Google (http://news.ycombinator.com/item?id=2727457) I'm wondering what you think about a Facebook.
No, I'm really not interested. Facebook strikes me as far too big for my comfort at this point, and I don't know that I'd be a good fit for their culture. And to be honest, I'm more interested in running a startup than I am in working for any $BIGCORP, including one as (seemingly) cool as Facebook.