The American Orchid Society (AOS) maintains a series of downloadable informational sheets on orchids including: orchids in the home, orchids in the garden, importing orchids and frequently asked questions.
Culture sheets for the beginner are available for the following alliances: Cattleya, Cymbidium, Dendrobium, Phalaenopsis, and Paphiopedilum.
Culture sheets for the intermediate grower include the following alliances: Cattleya, Cymbidium, Dendrobium, Lycaste, Masdevallia, Miltonia, Oncidium, Ondontoglossum, Phalaenopsis, Paphiopedilum, Stanhopea and Vanda. To download any of these culture sheets, go to Orchid Web, or the AOS website. See below.)
Additionally, the OGG maintains a library for it's members. To lean what is available, download either the MS-Excel or Acrobat file. (see links below)