The article really hits the RSS value issue square on the head I think. It can help you get indexed a lot faster…

Unlike Google, which allows you to use sitemaps as a way to get your site indexed and spidered, Yahoo uses several different approaches to indexing content.

It can take a little while to get indexed, but if you are persistent, you’ll see your site indexed on Yahoo in no time.

First, you need to understand the different ways that Yahoo indexes content because there are both free and paid versions.

However, since Yahoo no longer uses Google for its backend results, and Yahoo Directory listings are now mixed with search results, paying $299 a year to get included in the directory may not be the way you want to go.

Of course, if you have a personal, instead of a commercial website, you can get included in the Yahoo Directory for free. This will take some time; however, it is well worth the effort.

Now, before you submit your site to Yahoo, you will need to make sure that it is properly prepared, and that you have a Yahoo account. You can sign up for free.

The easiest way, of course, to get indexed is to have an RSS feed that has been correctly formatted in XML. Then all you have to do is log into your Yahoo account, add it to your My Yahoo page, and your site will begin to get indexed almost immediately. This works especially well for blogs, as well as sites that are updated frequently… Source: Promotion World