Yesterday we found out the nofollow attribute was coming to a search engine near you. Google, Yahoo, and MSN all announced this news yesterday at their respective blogs. I assume if Ask Jeeves had a blog, they would have been part of this announcement. Major blog development supporters include SixPart - MovableType, LiveJournal, Google's Blogger, WordPress, Flickr, Buzznet, Blojsom, Blosxom, and MSN Spaces.
Danny Sullivan has an excellent write up on what this is all about at his entry named Google, Yahoo, MSN Unite On Support For Nofollow Attribute For Links. Personally, I think I might add the tag to the comments here. But I am not yet sure. Since adding the image security code, I have had two comments that were spam. So I am thinking about just opening it up and linking directly. Why? Because people who comment here are on topic to the entries and provide insight. This tag is to prevent comment link spam, or any link spam - if you do not have a link spam problem, then you should be fine. I think this should be a default option in all blog software, all guest books and some forums - because many people just let their sites go to hell. It is an excellent way to prevent linkage spam in that case.
I know we are discussing implementing such a tag at SEW forums. But the question is where should it be implemented. So what about the SEO forums, what are they thinking?