Protocol Online - Collection of protocols spanning the field, and link to forum for methodology discussion. Laboratory Protocols - Bilingual list, with references, in the field of biomaterials research, by author from Munich, Germany. Karyotyping - Protocol for creating a karyotype of human chromosomes using giemsa staining and G, T, and R banding by fluorescence. Includes laboratory and academic links at Roberts Wesleyan College, Rochester, New York. Cell Biology Laboratory Manual - Procedures and related links for undergraduate level laboratories, from Gustavus Adolphus College, Saint Peter, Minnesota. Transfection.WS - Educational biology research resource with focus on transfection topics. Provides articles on cell and molecular biology research methods, protocols, and lab techniques. Ussing Chamber Systems - Provide comparison of the different types of Ussing Chamber Systems used in the research of studying transport across epithelial barriers. Provides product review of different types of Ussing Chambers and associated product support links. Transfection Resource - Cell transfection methods, products and services. Provides review on in vitro and in vivo transfection reagents, stable cell line development, transfection methods and techniques.