I like the look of the WP Flipbook format so ideally the books would be done that way. The other features I want are:
Automatic delivery of a login link or password when someone buys an ebook.
Inside the member area the book they purchased will be unlocked but we can have all our ebooks available and the customer can see the titles and a thumbnail and easily purchase any other books and then that book will be unlocked in their member area.
The ability to add any freebies or special offers in the members area.
Also, I would want to know if there's a way to prevent mass sharing of a single username / password. We want people to be able to freely access their member area from any computer or device but not where the same login details get shared and used by a whole bunch of people. I'm sure there's a way to do this?
Any suggestions on a membership platform or WP plugin greatly appreciated :-)