Some related posts from Technorati and Google.

 [Bruceclay.com Blog] An Interview with Rand Fishkin: Rand cites Yahoo's acquisition of del.icio.us (not to mention today's Google adds Digg results to its SERP headline) as a sign that engineers are taking social search and tagging seriously. However, he qualifies it in what could be the greatest line I've read recently, calling the tagging community 'too geek-focused'.

[Utcc.utoronto.ca] Chris's Wiki :: blog/spam/AmusingRefererSpammers: What I suspect is that the Referer spammers are doing Google searchesfor web pages that already mention spam domains (perhaps particularones), as a quick crude way of finding vulnerable web pages. Most ofthe time this works out okay, but it gets tripped up by web pages thatdiscuss spam domains.

[Ridiculousfish.com] ridiculous_fish » Blog Archive » Spam: After having to delete a few hundred spam comments from my weblog this week, I finally admitted that my blacklist wasn’t stopping any spam. Apparently domains have gotten too cheap for blacklists to be a viable deterrent anymore.

 [Epcostello.net] ed costello: articles and essays: Blocking Referer Spam: Doing some digging and tailing some of the logs, I realized that it was thisstupid crawler.It had become trapped in the site, not handling a URLcorrectly and just generating ever more erroneous requests to the site.I did the only logical thing I could think of, since I wanted to get rid of thetraffic (and the crawler was not stopping in response to 403,404 or 500 errors), I added the URI in error to ourredirect file, and targeted the redirect at the web site of the crawler inquestion.

Reflected tags on Technorati: Blog, Spam, Targeting Spam