The document discusses using Drupal to build an online Encyclopedia of Life to catalog all living organisms on Earth. It describes how Drupal allows for annotated taxonomy terms, scaling to manage large taxonomic trees, and importing/exporting taxonomy data in formats like XML and CSV. The project aims to have individual "LifeDesks" Drupal sites for each researcher to share taxonomy and annotate resources toward the goal of cataloging 1.8-7 million taxons.