Distributed Proofreaders Europe (DP Europe): http://dp.rastko.net/
Distributed Proofreaders Foundation: https://www.pgdp.net/c/faq/dpf.php
DJV (Deutscher Journalisten Verband): http://www.djv.de/
DMCA (Digital Millenium Copyright Act): http://www.copyright.gov/legislation/dmca.pdf
Doc Forum: http://www.docforum.tm.fr/
Documentation française (La): http://www.ladocumentationfrancaise.fr/
DOI (digital object identifier) System: http://www.doi.org/
DOI Foundation: http://www.doi.org/welcome.html
Dolby: http://www.dolby.com/
DRM (digital radio mondiale): http://www.drm.org/