The MusicBrainz database stores all the data of the MusicBrainz music metadata catalogue. This data includes all the data about Artists, Releases, Tracks, AdvancedRelationships between them, but also the MusicBrainz users (editors) and the changes they entered into the database …
From the website:
> This is an experimental service that makes the ICONCLASS Iconographic Classification system available as linked-data using the SKOS vocabulary. This service is inspired by the excellent Library of Congress Subject Headings linked data service. It is intentionally co …
Released in 2008 and funded by Hewlett Foundation. From front page:
> … This database makes searchable the copyright renewal records received by the US Copyright Office between 1950 and 1992 for books published in the US between 1923 and 1963. Note that the database includes ONLY US Class A (bo …
Zotero [zoh-TAIR-oh] is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources. It lives right where you do your work — in the web browser itself.
> The beta test environment for LibLime’s new cataloging service, ‡biblios.net, is now available!
> ‡biblios.net is a subscription-based, hosted version of the open-source ‡biblios metadata editor that we released earlier this year. In addition to the editor, ‡biblios.net inclu …
CiteSeer is a scientific literature digital library and search engine that focuses primarily on the literature in computer and information science. CiteSeer aims to improve the dissemination and feedback of the scientific literatur …
From front page:
> BibSonomy is a system for sharing bookmarks and lists of literature. When discovering a bookmark or a publication on the web, you can store it on our server. You can add tags to your entry to retrieve it more easily. This is very similar to the bookmarks/favori …
From main page:
> The Index Translationum is a list of books translated in the world, i.e. an international bibliography of translations. The Index Translationum was created in 1932 and this year is celebrating its 75th anniversary.
>
> The database contains cumulative bibliogra …
> 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 infrastructure for handling huge amounts of dynamic information, a wiki interface, multi-language support, and people w …
Service run by University of Lund in Sweden with info about > 18k journals:
Library of Congress Authority data harvested in December 2006. From the [readme](http://www.ibiblio.org/fred2.0/authorities/readme.pdf):
> Using a custom agent, we were able to harvest 6.95 million authority records using the publicly accessible interface to the Library of Congre …
Circulation and Recommendation data from the [University of Huddersfield Library](http://library.hud.ac.uk). Data is comprised of two parts:
> 1. Circulation Data. This breaks down the loans by year, by academic school, and by individual academic courses. This data will primarily b …
From the [data page](http://www.citeulike.org/faq/data.adp):
Who-posted-what data
The latest data snapshot can always be downloaded at
http://static.citeulike.org/data/current.bz2Older d …
Worldcat is an very large bibliographic service combining the catalogue of a large number of different institutions around the world. From [their site (2007-08-22)](http://www.oclc.org/firstsearch/content/worldcat/default.htm):
> At the center of FirstSearch is WorldCat, a cooper …
Discontinued in December 2008. From the website:
> This blog is intended to fill the gap left by the Library of Congress Subject Headings linked-data experiment. For almost a year the Library of Congress Subject Headings were made available as SKOS from this site as an experiment. The …