Currently, there are 25 participating institutions in the LDL. Each institution contributes the digital items and the descriptive text for their collections.
- Calcasieu Parish Public Library
- Delgado Community College
- East Baton Rouge Parish Library
- Law Library of Louisiana
- Louisiana State Archives
- Louisiana State Museum
- Louisiana State University
- Louisiana State University at Alexandria
- Louisiana State University at Shreveport
- Louisiana State University Health Sciences Center New Orleans
- Louisiana State University Health Sciences Center Shreveport
- Louisiana Tech University
- Loyola University New Orleans
- McNeese State University
- Nicholls State University
- Northwestern State University
- Southern University
- State Library Of Louisiana
- The Historic New Orleans Collection
- Tulane University
- University of Louisiana at Lafayette
- University of Louisiana at Monroe
- University of New Orleans
- Vermilionville Living History Museum & Folklife Park
- Webster Parish Library