Site maps are like a road map, but for your website. They show visitors and search engines exactly where everything is in your Yahoo! Store. You may have a visitor that knows exactly what they want, so they go straight to your site map for an easy to read overview of your store. Search engine spiders have a field day with Site Maps. They go from link to link indexing your entire site – that means better results for your store.
In today's competition for top search engine rankings, you need to be sure you are making it as easy as possible for your store to be indexed. Site maps help make that happen, and help to keep shoppers in your Yahoo! Store.