The British Library, one of the most highly prized institutions on the planet (and not just because they have my books there), has placed online a digital replica of one of Blake’s notebooks. It lets you flip through the pages and everything. Not every page is transcribed so you can read what’s there, but you do get to see a number of his sketches and drafts of various poems. It and several other digitized books in the same style can be found on their site here. Quite cool.