OpenGL 4.1 core specification: http://www.opengl.org/registry/doc/glspec41.core.20100725.pdf
GLSL 4.10 specification: http://www.opengl.org/registry/doc/GLSLangSpec.4.10.6.clean.pdf
GLU 1.3 specification: http://www.opengl.org/documentation/specs/glu/glu1_3.pdf
GLM HEAD snapshot: http://ogl-math.git.sourceforge.net/git/gitweb.cgi?p=ogl-math/ogl-math;a=snapshot;h=HEAD;sf=tgz
GLM bug tracker: https://sourceforge.net/apps/trac/ogl-math
GLM website: http://glm.g-truc.net
GLM OpenGL SDK page: http://www.opengl.org/sdk/libs/GLM/
G-Truc Creation page: http://www.g-truc.net/project-0016.html
The OpenGL Toolkits forum to ask questions about GLM: http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=postlist&Board=10&page=1