A tag group is nothing more than a named collection of tags. The primary benefit of a tag group is that it groups your content dynamically. A wiki document or discussion is not created in a tag group, but will be associated with one or more tag groups if it is associated with tags in the tag groups. If a discussion morphs into something entirely different in time, you can change its tags to change the tag groups it can be found in.
Enter a name and a description for the category below. You can then start entering tags by clicking on the tag cloud below, or by typing tags directly into the text box. To remove a tag, click on the tag in the cloud or delete it from the text box. When you are finished, you must remember to hit the save changes button, or your changes will be lost.