Hot on the heels of ping spam comes referrer spam

Referrer spam, by which a spam domain gets visibility on your list of incoming links, is the cutting edge of blog spam these days.
Jay Allen explains how to fend it off with a perl plug-in for MT-Blacklist (MT-Blacklist/Comment Spam Clearinghouse: Using MT-Blacklist on referrer spam).
Laura “limon” Lemay has another approach to staving off referrer spam.


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