Online Catalogues of Manuscripts

We begin here a listing of online catalogues and finding aids dealing with Special Collections and other manuscript and archival collections. We intend to restrict these to those known to include manuscripts containing Middle English. We welcome information and URLs for further collections which include Middle English manuscript materials.
Durham University Library, Conspectus of Medieval Manuscripts
"incomplete draft descriptions of medieval manuscripts in Durham University Library"

Glasgow University Special Collections, Manuscripts Information

Manuscripts Catalogue Search

Yale University, Beinecke Rare Book and Manuscript Library

Yale University Library, Finding Aids Database
Searches by repository and manuscript; enables users to search Barbara Shailor's catalogue of medieval and Renaissance manuscripts.
The James Marshall and Marie-Louise Osborn Collection, Medieval and Renaissance Manuscripts
Enables users to browse the Osborn Collection.