A well designed cooperative project aiming at preserving the state’s cultural heritage by collecting historic materials on California and the West and by ensuring that the general public has consistent access to its resources. The website offers many possibilities to retrieve resources and materials. Users can also customize and save records, download simple but well displayed and commented info, while moving through Main Catalogue, multimedia resources and e-journals, Californian State publications, and the Californian Research Bureau, which provides articles in full-text downloadable for free. Various issues are covered, searchable by a simple keyword-based feature. A fair amount of resources (metainfo, reviews, official Californian State laws, documents, and governmental acts) is accessibile also for general users, but some sections are restricted for California State Library affiliates. Some records, in pdf format, offer technical support to the online service and/or are dedicated to the librarian’s community. A good graphic categorization and an excellent search system help users retrieve documents.