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Cell Biology Web Sites
Cell: an Image Library
A freely accessible, easy-to-search, public repository of reviewed and annotated images, videos, and animations of cells from a variety of organisms from the American Society for Cell Biology
Molecular Biology Web Sites
Expert Protein Analysis System (ExPASy) Proteomics Server
Dedicated to the analysis of protein sequences and structures, from the Swiss Institute of Bioinformatics
A portal to cell and molecular animation
The NCBI Entrez service, a gateway to multiple life sciences collections hosted by the National Center for Biotechnology Information (NCBI), links to a large number of free databases that are invaluable free resources for various types of non-patent literature.