“content is king” is the familiar internet search axiom, if your site is rich in text-based content, easily crawled & indexed by search engine bots, that content can stand on the merits of its relevance and value in earning you appropriate page ranking. So how do you claim you throne, if you’ve a kingdom of video content on your website? “Allow me to recommend the use of “media RSS (mRSS),” that include Bing-specific mRSS tags that plug directly into Bing search index. Your use of a Bing mRSS feed will more fully populate all-critical metadata fields in Bing index, which ultimately affects keyword relevance association and thus resulting rank of that content in Bing search engine results pages (SERPs). Note, however, that video content doesn’t get preferential ranking because it came from an mRSS feed. It’s the keyword relevance derived from metadata you supply in mRSS feed that makes the difference. Yahoo has published a detailed mRSS specification, and Google supports video metadata extensions in Sitemap,” Bing Webmaster Center blog writes.