Yahoo was founded in 1994 by Stanford Ph.D. students David Filo and Jerry Yang. It has since evolved into a major internet brand with search, content verticals, and other web services. Yahoo! Inc. (Yahoo!), incorporated in 1995, is a global Internet brand. To users, the Company provides owned and operated online properties an...
See what your Facebook friends have liked, shared, or commented on across the Web. This includes all variations of Like, Share and Follow Buttons, Embedded Posts, Comments, Activity Feed, Recommendations Feed, Recommendations Bar, Like Box and Facepile.
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
Meta Keywords are a specific type of meta tag that appear in the HTML code of a Web page and help tell search engines what the topic of the page is.
Sites who has this tag are verfied by google to use WebMaster tools