This preprint of chapter 4 in Exploring Digital Libraries begins with an exploration of the parallel but separate developments of the web, digital library repositories, and hybrid libraries. It then turns to an examination of digital library repositories. Topics include numbers, usage, and discoverability of repositories; current position and roles; systems and software; federation and dissemination of repository content; next generation repository systems; and cyberinfrastructure, data and e-research support. This preprint's final and definitive form was co-published in Exploring Digital Libraries: Foundations, Practice, Prospects by Facet Publishing (2014) and ALA Neal-Schuman (2014).
- web search engines,
- discovery systems