I can't even remember how I came across this link (I think I was looking for credible sources with historical information on Mori Ranmaru), but it's pretty cool. Written by a Brit, it is amusingly snarky. The author also shares my view on how evil Oda Nobunaga was. (Which is to say, I don't think he was particularly evil, and have always been perplexed why he ended up being such a bad guy in modern fiction.)
My only complaint with the site is that I wish the author would list references. *sigh*
And on the research-y note, this is a pretty nice reference on the Hakone Jinja.