Certification in Sustainable Tourism: Costa Rican Tourism Institute directory of lodging providers who meet criteria for various level of sstainability. Describes guidelines and offers self-assessment. [English/Spanish/French]
Costa Rica Hotel Association: Country wide guide to major tourist zones with links and descriptions from hotels in each area.
Costa Rica hotel finder: Brief information and reservations for various budget hotels.
Costa Rica Inn Keepers: A non-profit association of B&Bs, lodges and inns. Includes a members section with links.
Costa Rican Hotel Guide: Guide to hotels, bed and breakfast, and beachouses. Photos of properties and online reservations available.