LiveInternet - крупный сервис дневников и сообществ, авторитетный сервис статистики для сайтов.
Adobe mbox is a "marketing box," a portion of your Web page that can be configured to show different content in different situations.
A semantic personal publishing platform with a focus on aesthetics, web standards, and usability.
A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
Meta descriptions are HTML attributes that provide concise explanations of the contents of web pages. Meta descriptions are commonly used on search engine result pages (SERPs) to display preview snippets for a given page.
Sites who has this tag are verfied by google to use WebMaster tools
The http-equiv attribute provides an HTTP header for the information/value of the content attribute. The http-equiv attribute can be used to simulate an HTTP response header.
A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".
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