24. The apparatus of claim 23 further comprising: a tag hierarchy placement component configured to determine where, in a hierarchy of previously stored tags, the particular tag is to be stored, and stores the particular tag in the hierarchy; wherein the tag provision component is configured to provide the set of tags to the devices for selection in the user interfaces in accordance with the hierarchy.
26. The apparatus of claim 24 , wherein the tag hierarchy placement component is configured to receives, with the particular tag, user command input identifying one or more parent nodes to which the particular tag is a child.