Yahoo Research stellt die Evolution des Taggings anhand von TagLines vor: ein Flickr-Jahresüberblick im Schnelldurchlauf.
"An algorithm chooses the eight most popular tags for each day, along with interesting photos corresponding to each of these tags. TagLines provides via Flash two metaphors for visualization: the waterfall and river. In the waterfall metaphor, the top eight tags are displayed in eight rows, with font sizes proportional to their popularity intensity and one or more photos from Flickr corresponding to each tag." (Yahoo)