Digg: The English word "digg" (to dig, excavate) refers to a website that is actually an article voting and commenting site. It combines bookmarks, blogs, RSS, and non-hierarchical comment moderation. Its uniqueness lies in the absence of professional website editors – all editorial rights belong to the users. Users can submit articles at will, and then readers judge whether the article is useful. The more users who bookmark an article, the hotter the article is considered to be. If users think the article is good, they can "digg" it. Once the number of digs reaches a certain level, the article will appear on the homepage or other pages.