Mentoring Guidelines:
http://serc.carleton.edu/NAGTWorkshops/earlycareer/research/students.html
http://www.rem.sfu.ca/COPElab/mentoring.html (particularly the guidelines for 
graduate student-mentor relationships)

Teaching Resources:
Graduate Student Instructor Teaching & Resource Center
http://serc.carleton.edu/index.html (specific to teaching science; lots about the earth sciences)