The Kernel Mentors Project was created by Matt Mackall as "an informal project to get experienced developers to mentor new developers and coach them on the best ways to get their code ready for submission."
The mailing list page for it can be found at [http://selenic.com/mailman/listinfo/kernel-mentors].
For more information on what is allowed to be discussed on the mailing list, see the KernelMentorRules.