We'll hang out in this thread and answer any questions. (Also happy to answer questions on my other books, "Land of Lisp" or "Realm of Racket")
http://stackoverflow.com/questions/11616697/how-to-use-og-me...
When I write newspaper opinion pieces on bitcoin (only one so far) I make sure it says in there that I own bitcoins.
I definitely agree though that bitcoin raises new questions about conflict of interest when writing about technology.
I would agree authors should disclose their participation, but I think disinterest/divestment on such matters is an unrealistic goal. Any stake or non-stake implies some personal preferences, and some personal stake is practically a prerequisite for motivating enough attention to understand and explain.
(Or as VC John Doerr has said: "No conflict, no interest".)