Some Facebook pages that include Baja California history:
Baja California Land of Missions Book Group
CONOCIENDO LAS CALIFORNIAS (Fotografias de la Baja California Antigua)
Baja California Topo Maps

Other notable Facebook pages: 
Viva Baja Group
Baja Overlanding
RVing in Baja
Slow Baja Community
Sierra San Pedro Mártir Group
Baja Lovers
Baja Visitor Community
Puertecitos Happenings
Cabañas La Pasión de Chillá camping
Know of other interesting, non-commercial Facebook pages? Submit your nominations to add here. Email them to