We will try to keep this an evolving palimpsest of current and relevant information sources.
Transport Canada for lists of approved companies, aircraft registration, AD searches and more
Transport Canada CAIRS for lodging complaints and making suggestions
FAA Basis of Certification by date
USA NTSB Accident Synopses by Month
ICAO Links To National Authorities
PAMEA list of Aviation Lawyers (if you didn't come to Pacific Airworthiness Consulting early enough)