AngryPets.com: ReverseDOS
   A free tool by Michael Campbell to stop comment and referrer spam by serving up an access denied response to spammer's bots.
   http://angrypets.com/tools/rdos/

Capn Design Archives: Referrer Spam is Out of Control
   Blog entry with a few coding suggestions and examples to thwart the spammers.
   http://www.capndesign.com/archives/2004/07/referrer_spam_is_out_of_control.php

ILoveJackDaniels.com: Block Referrer Spam
   Dave Child provides a blacklist of spamming sites which can be used in an .htaccess file on an Apache server to block referrer spam.
   http://www.ilovejackdaniels.com/spam/block-referrer-spam/

Kasia in a Nutshell: Spamming through Referrer Logs
   A weird referrer entry prompts some detective work and a log sanitization spree.
   http://www.unix-girl.com/blog/archives/000264.html

MetaFilter - Referer Log Spam
   Talks about companies like mastodonte.com and their business models of spamming referrer logs.
   http://www.metafilter.com/comments.mefi/21063

Redemption in a Blog: Smarter Referrer Spam?
   Blatant referrer spam may be evolving into more a subtle game.
   http://blog.codefront.net/2004/04/06/smarter-referrer-spam/

Referrer Log Spamming
   Brief description of the technique and the purpose, with some examples.
   http://www.komar.org/faq/scumbags/referrer-log-spamming/

Sam Ruby: Referrer Spam
   Blog entry discussing ongoing problems and solutions.
   http://www.intertwingly.net/blog/1649.html

Wired: When the Spam Hits the Blogs
   Strange things are afoot in blogland. Owners of weblogs have recently noticed that their referral logs have become the newest target for spam.
   http://www.wired.com/news/culture/0,1284,56017,00.html

ihelpyou.com: Why You Shouldn't Publish Your Web Logs
   Forum thread explaining that you should not publish your website statistics online, because of referrer spam.
   http://www.ihelpyou.com/forums/showthread.php?s=&threadid=9595

kuro5hin.org - Referrer log spam
   An early article noting website visits from spammers.
   http://www.kuro5hin.org/story/2001/5/30/22341/3757