The following are machine and human readable databases of freely-licenced content available at certain sites. Some programs that use them are also made available and can server as templates for your own. But YAML files are also very readable as plain text, in your browser or a text editor. A general-purpose automated processing program for YAML files is available at my personal site.
All catalogs are made available under the Open Data Commons Open Database License (ODbL). Their content is made available under the Database Contents License (DbCL) in so far as it has been created by Volker Schatz; some content may be the property of its respective creator(s).
OpenCores is a major repository of freely-licenced hardware designs. Its own database is a bit of a mess, due to the presence of many inactive designs and partially missing metadata. See here for more information.
YAML catalog of OpenCores projects from March 2015
Musopen is a (if not the) major site providing freely licensed classical music recordings. A few removed pieces are mirrored here.
YAML catalog of musopen.org from February 2015
These are classical audio recordings from the now defunct recording company Pandora Records. A large number of albums, primarily of chamber music, were subsequently published under a free license (see here, though the license file has apparently been removed), and are now available at ibilio.org as OGG Vorbis and MP3. The catalog below refers to OGG Vorbis files.
YAML catalog of Pandora Records
The Jerusalem Music Centre used to publish some of its albums on its website, though they seem to have been removed. All the same, here is a partial catalog.
YAML catalog of Jerusalem Music Centre albums
365 Tomorrows is a scifi flash fiction site that published a story every day. Stories are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs License. The following catalog in YAML format includes metadata and texts from August 2008 to August 2016.
YAML catalog of 365 Tomorrows
Disclaimer: This site is an offering from a private citizen to other private citizens. The information provided is not a product, cannot be assumed to be suitable for any particular purpose, and comes without warranty of any kind. It is not intended for commercial or other organisational use, and even personal use is at your own risk.
TOS / Impressum