It's seems weird that the world's #2 search engine cannot accurately index domains that are none-www. I tend to regard www as useless so my SEO campaigns were directed at non-www domains. It turns out that on Yahoo this is a major problem. My site used to be #1, but now it's back to #14, showing my site's www-domain, which only has PR3.
Obviously this has nothing to do with quality, it's just a Yahoo glitch.
When are they going to fix this, is what I would like to know...