A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
A review of an item - for example, of a restaurant, movie, or store.
A scheme.org entity that represents an article, such as a news article or piece of investigative report. Newspapers and magazines have articles of many different types and this is intended to cover them all.
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.