MetaFilter - Referer Log Spam 
Talks about companies like mastodonte.com and their business models of spamming referrer logs.
Referrer Log Spamming 
Brief description of the technique and the purpose, with some examples.
Referrer spam prevention script 
Offers a script intended for referrer spam prevention.
Capn Design Archives: Referrer Spam is Out of Control 
Blog entry with a few coding suggestions and examples to thwart the spammers. (July 22, 2004)
redemption in a blog - Smarter referrer spam? 
Blatant referrer spam may be evolving into more a subtle game. (April 6, 2004)
Sam Ruby: Referrer Spam 
Blog entry discussing ongoing problems and solutions. (November 18, 2003)
kasia in a nutshell: Spamming through referrer logs 
A weird referrer entry prompts some detective work and a log sanitization spree. (October 13, 2003)
ihelpyouservices.com - Why you shouldn't publish your Web logs 
Forum thread about why you should not publish your website statistics online. Namely, referrer spam. (June, 2003)
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. (October 26, 2002)
kuro5hin.org - Referrer log spam 
An early article noting website visits from spammers. (May 31, 2001)
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