I'm being slightly snarky about the unnecessarily breathless, Wikileaks-style headline of this piece:

Spy report that criticised Marlowe for 'gay Christ' claim is revealed online
https://www.theguardian.com/stage/2017/mar/31/christopher-marlowe-spy-baines-note-gay-christ-british-library-online

But the actual fact that you can now view the Baines note online, along with many other resources on the British Library's Discovering Literature website, is rather lovely, actually.

(Also, one of the other things mentioned in the article is Derek Jarman's notebooks for his film of Edward II.)