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Open Library
About One web page for every book ever published. It's a lofty, but achievable, goal. To build it, we need hundreds of millions of book records, a brand new database... -
MusicBrainz
Description The MusicBrainz database stores all the data of the MusicBrainz music metadata catalogue. This data includes all the data about Artists, Releases, Tracks,... -
Mendeley Research Catalog
The Mendeley Research Catalog is a crowdsourced collection of 80M research documents. New documents are added about a rate of approximately 7 million per month. Citation details... -
HelMet - catalogue data from Helsinki region city libraries
Catalogue metadata (HelMet database) of all 680 000 items that can be found from the Helsinki region (Helsinki, Espoo, Vantaa and Kauniainen) City Libraries in MARCXML. Format...