Digital distribution (also called content delivery, online distribution, or electronic software distribution (ESD), among others) is the delivery or distribution of media content such as audio, video, software and video games.

The term is generally used to describe distribution over an online delivery medium, such as the Internet, thus bypassing physical distribution methods, such as paper, compact discs, and VHS videocassettes.

The term online distribution is typically applied to freestanding products; downloadable add-ons for other products are more commonly known as downloadable content.

With the advancement of network bandwidth capabilities, online distribution became prominent in the 21st century.

A digital library is a special library with a focused collection of digital objects that can include text, visual material, audio material, video material, stored as electronic media formats (as opposed to print, microform, or other media), along with means for organizing, storing, and retrieving the files and media contained in the library collection.

Digital libraries can vary immensely in size and scope, and can be maintained by individuals, organizations, or affiliated with established physical library buildings or institutions, or with academic institutions.

The digital content may be stored locally, or accessed remotely via computer networks.

An electronic library is a type of information retrieval system.