do all the major search engines handle the nofollow tag, or is it just Google?

noone knows?

I don't know, but I actually think its a great question. I'm guessing that all the other SE's have utilized this tag....?

Yes. Google, MSN, and Yahoo all support the nofollow tag.

For those that don't know, it's when you add rel="nofollow" to your anchor tags.

any references of the fact that they do?... seems important to know

I've heard that Google has been ignoring the nofollow tag, regardless of the fact that they suggested it to webmasters. May have changed by now, though.

Originally Posted by SEO Portal

any references of the fact that they do?... seems important to know

The nofollow tags are a real harm and should be understood by every webmasters.

From a blog owner's point of view, the nofollow link tag could be seen as an important tool in the fight against spam links whereas from a person who is working on link building then it is going to take him forever to get a PR.

Originally Posted by Muhammad Haris

The nofollow tags are a real harm and should be understood by every webmasters.

From a blog owner's point of view, the nofollow link tag could be seen as an important tool in the fight against spam links whereas from a person who is working on link building then it is going to take him forever to get a PR.

Bingo. I've got a blog that I haven't posted in for about 6 months, but was very popular when it was active. About 2 months ago, I started getting about 30 spam comments per day. Even after I turned off comments, I was still getting them somehow. So I went into the Wordpress code and actually removed all traces of the comment form.

Originally Posted by SEO Portal

any references of the fact that they do?... seems important to know

A quick Google search will bring up a good amount of results