i've recently been looking into how to optimist for Bing and was surprised to find how much it actually differs from Google - many of my sites are positioned completely different for the same keywords! from what i've seen so far, Bing seems to regard on-page content much more highly, so keyword density is actually relevant. and from performing a few searches it looks like keywords in the domain are VERY important. i've also read that domain age is highly regarded. other than that there is little info kicking around on optimizing for Bing, i wondered if anybody here could add to this?