16. The method of claim 1 , further comprising: causing display of a user interface with one or more controls to enable a user to perform predetermined operations associated with the tag.
16. The method of claim 1 , further comprising: causing display of a user interface with one or more controls to enable a user to perform predetermined operations associated with the tag. 21. The method of claim 16 , wherein the predetermined operations comprise: enabling a user to cause a video tag to change characteristics of the video tag so that the characteristics of the video tag selectively change during playback of a video associated with the video tag.