Ranking criteria for Yahoo SSP - XML Feed Ranking

What is the ranking of XML Feeds depending on?

XML feed ranking corresponds to normal organic serach listings and are evaluated using the same criteria. But they offer a simpler way to target optimisation for certain keywords.

The ranking of the entry also heavily depends on the link popularity of the website. The link popularity of a website in Yahoo can be checked using the Yahoo! Site Explorer tool at the following URL:

http://siteexplorer.search.yahoo.com/