Bing is one of the up and coming search engines in the online community today. I'm sure that you have seen the commercials that have telling you that they are the decision engine not the "search" engine. Pretty good when you think about it. Bing is trying to crawl up the ladder slowly but surely. There are many great reviews about bing from users around the world. Many say that Bing is easier to navigate, more interactive, better customer support, and is more faster and responsive than Google itself. You can search more information on Alexa.com. What does this mean for SEO? This means that Bing has plenty of knowledgeable people looking for specific types of information online and are starting to use Bing for answers before Google.
I'm not saying that Google is being threatened by them nor am needarily saying that Bing is better than Google. What I am saying is that you should pay close attention what is going on in the internet as opposed to listening to particular figures that narrow your mind only into a specific strategy or search engine, telling you that this is the only way you can get to people online which is preposterous.
There are three unique strategies that you can use to optimize on Bing.com. You are gong to have to do something a little different from what you have been told. First of all you first need to do a regular search on Google. Once you perform your keyword search on Google (using quotations on the keywords you are looking to use) you will want to take those same keywords or key phrases and place them in the bing search bar as well. You will want to analyze both results and see which one is the best ranked.
You should know that Bing does not favor domain keywords (ie xyz.com, .net, .info, etc.). Bing.com's own domain does not even rank that high their own search engine but they are in the top ten in Google. However, Bing does like EzineArticles.com and forums.
You will also want to use XHTML as oppose to HTML as Bing optimizes better for XHTML. You will want to be sure that you have the appropriate validation for your XHTML to suit the W3c standards. Bing is also big on meta tags. Google does not give much detail about the amount of characters for optimizing meta tags but Bing states that you should have original tags for each page that you want to establish and should be 25 to 150 characters, 874 characters in your keywords, and the most important keywords in your title and description. Keywords should not repeat more than 4 times or it will look like you are spamming.