Each day Traackr will get information like number of views, comments, and ratings, with trend graphs to make the data pretty. It will also show you which of your tags get the most views (helpful for getting user attention). You can also create campaigns to track how well certain media objects are "performing" which could be very useful for a photographer to see how popular certain groups of photos are.
Traackr could be a great tool for musicians, photographers, videographers, and the ego-centric social-site user. It's a central location to see how popular you (or your work) are, and it gives you seemingly arbitrary "Buzz" and "Populartity" scores.
