There are many PLR ebooks membership sites and as you would probably imagine, some of them are far better than others. You will find varying examples of plr ebooks at these sites from the very poor to the very good. Have a search around and see what plr ebooks membership sites you can come up with.
There are some PLR ebooks sites memberships that are closed to the public and often for a very good reason, the plr ebooks are of top quality and they don;t want the word to get out that these top quality plr ebooks actually are plr. They usually have a facility for you to leave your email address to be notified when there is a space in these plr ebooks sites but don't worry, there are plenty of good plr ebooks membership sites that do have openings.
When you choose this way of obtaining your plr ebooks don't worry if there are quite a few members, many of them won't do anything with their plr ebooks so make sure that you do. Another thing to remember is that when you choose any one of the many plr ebooks to promote, don't be distracted by other plr ebooks, concentrate on your initial choice and work on it until it is finished.
Make sure that you get value for money from your chosen plr membership site and you will find that you will have a steady supply of PLR ebooks to promote.