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CWebguy - 10:20 pm on Sep 4, 2007 (gmt 0)
Yahoo and MSN say that they have implemented the nofollow tags, but wheter they truly have or not I can't say for sure. God Bless! [edited by: CWebguy at 10:21 pm (utc) on Sep. 4, 2007]
The nofollow route on individual links ONLY works in Google and none of the other engines / directories, so google will or could end up picking up the links through other listings on other sites. Using the robot.txt route at least MOST of the SE's will follow your requests that way.