Google, Bing and Yahoo jointly announced a new initiative today at Schema.org to create and support a common vocabulary for structured data markup on web pages in Microdata.
For many years search engines have worked independently of one another to establish some standards in structured markup. Essentially, through Schema.org, the search engines have come together to provide support for a common set of schemas - again, that would be microdata.
In the past, there were different standards for structured data markup including microdata, microformats, and RDFa, causing confusion for webmasters which may have ultimately been the cause of the slow adoption.
Digital marketing executive with proven experience in all aspects of search engine optimization (SEO), performance-based advertising, consumer-generated/social media, email marketing, lead generation, Web design, usability, and analytics. - 20-year Internet marketing veteran, currently serving as the Digital Marketing Campaign Manager at Antenna Group (formerly Chicago Digital). - Former Editor-In-Chief of Website Magazine, and a regular speaker on Web technology digital marketing strategy - Author of several books on digital marketing Including Web 360: The Fundamentals of Web Success; Affiliate 360: The Fundamentals of Performance Marketing; Domains 360: The Fundamentals of Buying & Selling Domain Names, and SEO 360: The Fundamentals of Search Engine Optimization.