Reviews recent advances in inorganic and organometallic polymers, including new polymerization processes, new polymer systems and many specialty applications. Discusses thermal, electrical, optical, surface, and biological properties of many systems and presents applications as resist materials, gas permeable membranes, high temperture thermosets, corrosion resistant coatings, and ceramic precursors. Reviews new synthetic routes to and modification of polyphosphazenes, polysilanes, and sol-gel hybrids. Reports on novel inorganic polymers consisting of sulphur-nitrogen, metallocene-silane, and boron-carbon backbones. Examines structure-property relationships of many systems including polyphosphazenes and heterometallic oxopolymers such as the aluminoxanes.