It just dawned on me that what Kleinberg's talking about today in class is the content of the very paper through which I first heard of him back in like 1999, namely
Jon M. Kleinberg. "Authoritative Sources in a Hyperlinked Environment" in Proceedings of ACM-SIAM Symposium on Discrete Algorithms, 668-677, [Online: http://www.cs.cornell.edu/home/kleinber/auth.ps], January 1998.
Jon M. Kleinberg. "Authoritative Sources in a Hyperlinked Environment" in Proceedings of ACM-SIAM Symposium on Discrete Algorithms, 668-677, [Online: http://www.cs.cornell.edu/home/kleinber/auth.ps], January 1998.