SNA websites
International Network for Social Network Analysis (professional SNA society - with lots of links, naturally!)
Interdisciplinary center for network science and applications (University of Notre Dame)
Social Network Analysis Instructional Web Site (by Steve Borgatti, professor of management at the University of Kentucky)
Interdisciplinary networks course at Cornell University (cross-listed in computer science, economics, sociology, information science), by professors David Easley (economics) and Jon Kleinberg (computer science)