Cold Spring Harbor ProtocolsCold Spring Harbor Protocols is an interdisciplinary journal providing a definitive source of research methods in cell, developmental and molecular biology, genetics, bioinformatics, protein science, computational biology, immunology, neuroscience and imaging. Each monthly issue details multiple essential methods—a mix of cutting-edge and well-established techniques. To access free, full text protocols in cell biology, select "Free Featured Protocols" on the home page, and then select "Cell Biology."