Several early adopters of the logo have already signed up, the FSF added, including tech books publisher O'Reilly Media, BitTorrent distributor ClearBits, e-book distribution platform Foboko, Momentum Books, programmer-focused The Pragmatic Bookshelf, Obooko, and Project Gutenberg Australia.

Creative Commons Licensed

The Free Software Foundation also recently updated its with an expanded listing of places where e-books, movies, and music without DRM can be found. A page of "worst offenders" is included as well.

The new "DRM Free" logo is free to use for anyone who does not require DRM or other proprietary technologies to access their files, the FSF says; it can be found on the organization's page licensed under a Attribution-ShareAlike 3.0 Unported License.