While Google sends you the maximum traffic, it will be a bad idea if you do not optimize your site for Bing as the share of Microsoft’s search engine is set to grow now that they have partnered with Yahoo Search.

The Entrepreneur suggests a couple of ways that may help your site rank better in Bing:

1. The older, the better. Bing places a lot of emphasis on the age of a domain, so if you’re just starting out, you might consider buying an older domain in order to get your site a higher ranking.
2. Titles are important. Bing seems to place a lot more emphasis on title tags than Google does, so make sure you use your best keywords in the title tags of every page on your site.
3. Text is terrific. For Google, the amount of text you have on a web page doesn’t play a huge role. Not so with Bing, which seems to place a higher value on pages that have at least 300 words.
4. Outbound links are OK. Google has always seemed to frown on the number of outbound links you have on a page. But Bing actually seems to like them–at least for now.

From entrepreneur.com.