Many clients think Yahoo doesn’t matter. Well, those of us in SEO know that is not so. One really important thing I think many have missed is the Verizon/Yahoo link. If someone chooses to go with Verizon Fios everything is set to go through Yahoo.
There is a large amount of people, believe it or not, that don’t know how to change their home page or they don’t bother to, so Yahoo will be the first page they use to search. If you think there is no reason to be concerned with Yahoo there is one huge reason!
Here is a great article on Yahoo SEO. – from BacklinksBreakthrough.com
Melissa- SEO Aware Blog