Yahoo! Search Open Ecosystem

Now yahoo has advanced its search engine technology to new horizon.
Yahoo now will be able to present users with more compelling and useful search results for their site.According to yahoo blog "By supporting semantic web standards, Yahoo! Search and site owners can bring a far richer and more useful search experience to consumers"

Benefits:

Increased traffic and quality search

have a look on this post

http://www.ysearchblog.com/archives/000527.html