I was testing Yahoo vs the AOL search engine to see which is better and used 'seinfeld' as a test phrase. (I have a theory that Yahoo is going from being the best search engine to the worst - so far I have seen no evidence to indicate I am wrong)
Anyhow ... in the process I came upon what i consider a nice link:
http://www.csmonitor.com/durable/1998/05/08/fp12s2-csm.htm
It answered some questions I had.