Yahoo! hits the mark for SEO with its robots-nocontent attribute

Web pages often include headers, footers, navigational sections, repeated boilerplate text, copyright notices, ad sections, or dynamic content that is useful to users — but not to search engines. Webmasters can apply the "robots-nocontent" attribute to indicate to search engines any content that is extraneous to the main unique content of the page. Yahoo! Search observes the class="robots-nocontent" present on XHTML elements, such as div, span, and all others.

This is a great idea from Yahoo! as it means that web designers (and SEO companies) can better identify to the crawlers what are the actual content of the page and not just supporting content (like navigation menus). I think this could have a huge impact on the results displayed in Yahoo!, especially for those who implement the new attribute. Veign has, have you?

Link:
http://help.yahoo.com/help/us/ysearch/slurp/slurp-14.html

Blog post from Yahoo!:
http://www.ysearchblog.com/archives/000444.html