Sherpa Romeo - v2.sherpa
"Sherpa Romeo is an online resource that aggregates and analyses publisher open access policies from around the world and provides summaries of publisher copyright and open access archiving policies on a journal-by-journal basis."
NDC: 053, 021
U.S. Copyright Public Record System
"The Copyright Public Records System (CPRS) is a pilot that will run in parallel with the Copyright Public Catalog. The CPRS uses a more powerful search engine than the Copyright Public Catalog, provides easy filtering capability, and follows user-centered design principles in line with the Enterprise Copyright System."
NDC: 021
Primary Sources on Copyright
"This is a digital archive of primary sources on copyright from the invention of the printing press (c. 1450) to the Berne Convention (1886) and beyond."
NDC: 021