Most available resources (even Bing community) promote the general principles for optimize a site in Google. My site is quite well optimized for a certain keyword combination in Google, yet in Bing it fails to even show up on 1st page. Now, I'm aware both engines do not employ same algorithm. In this case, then there should be particularities in Bing SEO, too. All I found online was pretty vague.
Here are a few resources that might help you:
Two particular tips I've seen a few times (e.g. here) are:
- Domain age is a big factor in Bing. Google has their sandbox (or whatever they call it) where new domains are "given the benefit of the doubt" with a small boost early and then dropped back later on. Bing doesn't have this AFAIK and new domains will take a while to gain any traction.
- Don't be afraid to link out. Too many people are worried about "losing PageRank" and so refrain from linking to other sites. However if a site is completely "self-contained," that could be seen as spam I guess.
But there really is nothing concrete as far as I can tell. No sites provide any research or evidence to back claims up. Simply creating great content and gaining many in-links is key for all search engines.
(Incidentally, there is definitely a gap in the market for a site targeted to "bing seo". Search that term and just marvel at the horrendously low quality of every site that comes up. None of them appear to have any inlinks either since they are such poor quality.)
Bing has a webmaster tools package available that they claim will help you sort out any issues. I'm not sure if there's any difference between it and Google's webmaster tools, but I'm always skeptical of all Microsoft's claims....