My younger brother is an anthropologist so I am dedicating this post to him.
The ultimate destiny for a post-it note is the trash bin. It is part of the inevitable cycle of the small paper reminder, note, name, number, cheat sheet, or doodle. The humble post-it note is ephemeral by design. There is however, someone who is collecting them, archiving them, and cataloging found post-its.
Anthroposts is a cool little website that gathers up found post-it notes and organizes them by their color, use of common words and the complexity of the note itself. When the notes are organized by common words, the site shows a visual interconnection of how the notes are related. The site features a soundtrack of all their where the notes are read out loud and combined with background noise and music.
Each note is clickable so that you can see it full size and experience the original handwriting, doodles, and notes in vivid detail.