An anonymous reader writes "Canada Post has filed a copyright infringement lawsuit against Geolytica, which operates GeoCoder.ca,
a website that provides several geocoding services including free access to a crowd-sourced, compiled database of Canadian postal codes. Canada Post argues that it is the exclusive copyright holder of all
Canadian postal codes and claims that GeoCoder appropriated the database and made unauthorized reproductions. GeoCoder compiled the postal code database by using crowdsourcing techniques, without
any reliance on Canada Post's database, and argues that there can be no copyright on postal codes and thus no infringement (PDF)."