1609 Shakespeare’s Pericles with corrections It was popular enough that there were 2 editions printed in 1609.
Annotated books online This looks really intriguing, although I haven’t had time to delve into it too deeply. It’s a collaborative academic project based in the Netherlands that will let people work on digital editions of annotated early modern (“first three centuries of print”) works.
And for brand new work:
Prof Hacker’s recent column on tools for creating ebook content is fairly short but has a few links and notes if you haven’t worked with things like this before.
Here’s a bit of a long read from the New Yorker on the recent commercial plagiarism case involving a spy novel that Random House published that was cobbled together from other spy novels. It includes an account of how the “author” composed and revised it and raises questions about the nature of authorship, editorship, and remix.