This presentation argues that the echt-strict world of taxonomies and the let-it-all-hang-out universe of folksonomies are not in opposition, but can peacefully coexist along a continuum of choices, opportunities, and need. Taxonomies and folksonomies are complementary, offering strategic advantages (for example, speed and critical mass versus precision and disambiguation) that have their time and place.

Finally, along the sliding scale of taxonomic precision lies one more underexamined group: the "uber-folksonomy," where communities of expertise and accountability develop flexible, smartened-up discovery languages.