Tagging is an important concept in when using the read/write web. A tag is a (relevant) keyword or term associated with or assigned to a piece of information (like picture, article, or video clip), thus describing the item and enabling keyword-based classification of information it is applied to. (Wikipedia, Tag) Tagging is used to categorize bookmarks, photographs and blog posts more effectively enabling the sharing of online content.

For example: You can also share the bookmarks that you have collected by the URL. You can share all your bookmarks or you can share those that have been assigned a specific tag.

Why Tag