KKR-backed OverDrive, a digital reading platform for libraries and schools, agreed to acquire RBdigital, the media platform and app, from RBmedia, a provider of spoken audio content and digital media distribution technology. Financial terms were not disclosed. "Combining the RBdigital library business with OverDrive's industry-leading technologies will greatly benefit libraries and their readers worldwide. We're proud to enhance our value proposition for libraries by delighting readers with this new content on the award-winning Libby and Sora reading apps," Steve Potash, OverDrive Founder and CEO.