SHERPA/RoMEOFind OA-Friendly Publishers
SHERPA/RoMEO summarizes publishers’ & journals’ copyright & self-archiving policies
SHERPA/RoMEO classifies publishers into colors for easy identification:
Green - refers to publishers whose policies allow archiving of pre-print and post-print or publisher's version/PDF
Blue - refers to publishers whose policies allow archiving of post-print or publisher's version/PDF
Yellow - refers to publishers whose policies allow archiving of pre-print
White - refers to publishers whose policies do not formally support archiving any version