This organization and ACPA are the major professional association for student affairs. In addition to being the primary organization for judicial affairs, they have a list of links on the 1998 Higher Education Act and other legal issues. This list, developed by the University of North Carolina-Charlotte, takes you to student affairs research offices around the country. The Chronicle is the definitive source for information on higher education and student affairs issues.
Members can review many years of full-text archives of their articles.
This is the primary professional organization for residential life and housing administrators. This site includes a very good collection of links to sites on Greek issues. NACA is the main group for student activities. Here's the primary organization for student union folks. This is list of links to many student activities offices throughout the U.S. developed by the Office of Student Life at the University of Pennsylvania.