Everyone who has an account, and how the app is being used. Approving lets someone in; withdrawing signs them out everywhere at once.
Sent from the website by people asking for access. Marking one done keeps it, out of the way.
How the page looks while you read along.
Names the voice mangles. Alt-click any word on the page to add it quickly.
Free public-domain books, from Wikisource, Project Gutenberg and the Internet Archive. Classics rather than new releases — anything still in copyright is not here.
Books you have opened, and where you stopped in each.
Any text at all — a chapter, an article, a whole book.