MICHAEL COSTELLO is a network engineer at Lafayette College, where, as lead design engineer, he recently built a multiprotocol label-switching network and currently is developing a network access-control system to lay on top of it. Before coming to Lafayette, he worked for one ISP and started another. He holds a B.S. in Electrical Engineering and a B.A. in Physics from Bucknell University.

ALFRED ESSA is associate vice chancellor and deputy chief information officer for Minnesota State Colleges and Universities. His portfolio includes enterprise infrastructure services, identity management, academic systems, analytics and technology planning for the 32 institutions that comprise MnSCU. He also teaches as an adjunct instructor in Computer Science at St. Paul College.

JEFFREY FRITZ is director for enterprise network services at the University of California, San Francisco. His team handles network technology for UCSF’s two main campuses, its two hospitals and more than 200 remote sites. He served as chairman of the National Information Infrastructure Working Group, which paved the way for Internet2.

JOHN O’KEEFE is director of academic technology and network services at Lafayette College in Easton, Pa. He also co-teaches film courses as an adjunct member of the English department and co-chairs a committee to establish a film and media studies program. In addition to film, his interests include network infrastructure technologies, teaching and learning initiatives, open-source development, identity management, SAN/storage technology and disaster recovery.

MITCH TULLOCH is a Microsoft Most Valuable Professional and was the lead author for Windows Vista Resource Kit from Microsoft Press. For a shameless plug, go to www.mtit.com. When away from his computer (which is rare), Tulloch enjoys walking, listening to jazz and reading books by Donald Trump.