Before you submit your website to new Microsoft search engine Bing.com you must check whether the website is already idex by Bing. Because Bing.com is reported to be very fast in indexing new websites. Also, old websites are already index by Bing.

If, however your site is not Index by Bing, submit your website here http://www.bing.com/docs/submit.aspx

Also, visit Bing webmaster portal, http://www.bing.com/webmaster