Check it out:
TRASHSPOTTING, PRACTICAL DEFINITION:
To analyze the curbside recycling and general refuse of a household, neighborhood, city, or country, especially with a long-term view, for intellectual gratification, for social pleasure, and for cultural perspective.
Achewood is a cool webcomic where many of the characters have their own blogs. This blog, by the character Emeril, explains a new intellectual pursuit called trashspotting. He's developed a manifesto to explain it and lay down some trashspotting guidelines. I've decided to start a DFW chapter.