Reports progress on chemical, enzymatic, phage, and cell-derived libraries. Discusses synergy between structure-based design and combinatorial libraries. Presents applications of combinatorial libraries to drug discovery and new synthetic catalysis. Reports library screening approaches, including the use of NMR. Presents recent advances in solid-phase organic synthesis, liquid-phase organic synthesis, and high-throughput combinatorial organic synthesis. Discusses automation of organic synthesis as well as new methodologies for monitoring solid-phase organic synthesis.