Geology of Baja California - Geological analysis of the formation of the Baja peninsula; Includes pictures and explanation.
Geology of Baja California - Descriptions of geologic provinces and history, from Fred Metcalf's Baja Information Pages.
Pro Peninsula - A San Diego-based organization dedicated to the preservation of the unique natural environment on the Baja California peninsula. [English/Spanish]
SeaWatch - Environmental information and an action plan to help revitalize the Sea of Cortez.