What is the goal of the California Natural Diversity Database? Simply put, it is "a program that inventories the status and locations of rare plants and animals in California." On its page, visitors can look over a remarkable database of GIS-mapped locations, along with key facts about the database, a host of white papers, and information about its vegetation, classification, and mapping program....

This privately published Web site functions as a detailed natural history guide to California's San Gabriel Mountains. Users can access a wealth of detailed information regarding the region's plants, animals, weather conditions, etc. The road guides are so detailed that the reader may almost feel as if he or she is actually there. While the text is dense and images are few and far between, almost...