> 9100 protocols. Subjects covered include: antibodies, bioinformatics/genomics, cell biology, chromatography, computational biology, DNA delivery/gene transfer, electrophoresis, genetics, high through-put analysis, imaging/microscopy, immunology, laboratory organisms, molecular biology, neuroscience, plant biology, polymerase chain reaction (PCR), proteins and proteomics, RNA interference/RNAi/siRNA, stem cells, transgenic technology. From Cold Spring Harbor Laboratory Press manuals and courses. New protocols are solicited by editorial staff.

From Elsevier, in ScienceDirect, 1990-. Use advanced search and type in methods in enzymology for the source title field.

> 60,000 protocols and methods in the life and biomedical science areas of biochemistry, biotechnology, genetics, immunology, informatics, infectious diseases, microbiology, molecular medicine, cell biology, neuroscience, cancer research, PCR, genomics, protein science, plant sciences, pharmacology, toxicology. Online version of print series Methods in Molecular Biology and Methods in Molecular Medicine from Humana Press. Includes protocols on video.

> 17,000 searchable or browsable protocols in the areas of bioinformatics, cell biology, cytometry, human genetics, immunology, microbiology, molecular biology, mouse biology, neuroscience, nucleic acid chemistry, pharmacology, protein science, stem cell biology, toxicology.