The R2 Digital Library from Rittenhouse is an eBook database of thousands of vetted and quality health sciences resources that supports health sciences education and practice. Rittenhouse sources a wide variety of quality content from over 100 leading health sciences publishers, societies, and professional associations, and makes it available in one location so it can be accessed effortlessly. Libraries and hospitals can create a digital health sciences collection based on local needs, with a single concurrent user purchasing option. With new, competitive eBook pricing, free OER eBooks, and some content available nowhere else digitally, collection development through the R2 Digital Library has never been more convenient or affordable. Customers can start an immediate collection or augment their existing collection with a mediated Patron Driven Acquisition (PDA) model. Usage data can be collected for PDA eBooks to inform collection management. Customers can purchase what is used, with no automatic purchase required.