From Hoopla’s May 8 blog post:
Due to the overwhelmingly positive response and the continued need of our library partners and their communities, we have extended the availability of the hoopla Bonus Borrows collection through May 31! We have changed some of the titles and increased the overall size of the collection to help patrons have even more choices. hoopla’s Bonus Borrows collection now includes more than 1,500 titles—including Harry Potter and the Sorcerer’s Stone in both audiobook and eBook!
As a reminder, each circulation of a Bonus Borrows title is complimentary to libraries, and does not count against a patron’s monthly borrow limit.