Search more than four million collections at depositories principally in the United States and Canada. Invaluable for identifying collections in unexpected places. See your liaison librarian for help with this and other archival search tools.
"AIM25 is a free-to-use database of archives and manuscript collections from many of London's higher education institutions, learned societies, cultural organisations and City livery companies."
" ... manuscript holdings of British and Irish repositories of all sizes, from the British Library to small-town museums, and about literary authors of all genres, from major poets to minor science fiction writers and romantic novelists."