Since it’s lunch a year ago, Yahoo! Site Explorer has been serving web-masters to “explore” their website information contained in Yahoo! database. If you have been using Google site-map using Yahoo! Site Explorer will be very easy. In fact when it comes to submitting site-feeds (“site-map”-Google equivalent), Yahoo! Site Explorer seams to be much more flexible. It offer you to submit your feeds in following formats Atom 0.3, RSS 0.9, RSS 1.0 RSS 2.0 and simple URL list.
Although Yahoo! states that using this service will not improve your site’s ranking for the search result, it is very useful tool to notify Yahoo about new content and updates on your website(s).
*WordPress users may simply submit their syndication feeds to Yahoo! Site Explorer.