OpenX is one of the world's leading providers of digital and mobile advertising technology, enabling businesses to manage and maximize their ad revenue. OpenX products, including OpenX Enterprise, OpenX Market and OpenX Lift provide a comprehensive Software-as-a-Service platform by combining ad serving, an ad exchange and a brea...
Allows a website to define how a page is rendered in Internet Explorer 8, allowing a website to decide to use IE7 style rendering over IE8 rendering.
Open graph description entity tag
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook
Sites who has this tag are verfied by google to use WebMaster tools