From Fedora Project Wiki
Discussions on Licensing Isssues
We are putting together some discussion points about the FDP switching to the OPL without options.
http://www.opencontent.org/openpub/
What Others are Saying
About the GFDL
http://wiki.debian.org/GFDLPositionStatement
About the OPL
This is a DRAFT FAQ for the OPL and DocsProject licensing:
About Alternate Licenses
Linus and the kernel: http://lkml.org/lkml/2006/1/25/273