Whoopee! Lycos and Ultraseek offer tools to search for referrers to a website.
Caveats:
1. Lycos
2. Infoseek
413.   How can I solve Cisco Catalyst 3550 series issues where a port seems to have died?
  [jake/2004-08-23]
380.   What is a dirty hack to see some statistics on the FQAs posted here?
  [jake/2003-09-22]
354.   What is a secure alternative to irc that doesn't suck like irc over ssl?
  [jake/2003-03-02]
240.   Where can I find black and white photos of people and places in San Francisco?
  [rupe/2001-06-05]
202.   Where's a good place to get custom and hard to find computer cables in the Bay Area?
  [rupe/2001-03-19]
184.   Just how many people are their, anyway?
  [les/2001-02-22]
158.   Where's a good place to start to learn about the IETF (Internet Engineering Task Force)?
  [rupe/2001-01-02]
146.   What commands do UNIX system administrators commonly use?
  [rupe/2000-11-09]
( strick/2001-01-04 )
139.   How do real programmers write code?
  [rupe/2000-10-25]
83.   What's the best way to send mail as stdin to a program, using sendmail?
  [rupe/2000-04-28]
60.   Where can i find out about taking the java certification exam?
  [jesse/2000-02-15]
53.   Why is strick's favorite composer Dennis Báthory-Kitsz?
  [strick/2001-05-13]
19.   What DNS servers does the YAK use?
  [strick/2001-05-25]
1.   From whom did The Yak borrow the idea of Frequently Questioned Answers?
  [strick/2000-01-19]