The past two decades have seen tremendous developments in the field of metal- and metalloid-containing macromolecules. The design of new monomers containing metal and metalloid elements and their subsequent polymerization has resulted in a vast array of inorganic and organometallic polymers with interesting properties and applications. This volume features 30 articles based on presentations given in the Metal- and Metalloid-Containing Macromulecules Symposium at the 39th IUPAC Congress and 86th Conference of the Canadian Society for Chemistry in Ottawa from August 10-15, 2003. The articles, written by some of the leading researchers in the field, describe the synthesis, properties and applications of inorganic and organometallic polymers and the current focuses of research in these fields. The purpose of this symposium was to generate dialogue between these researchers and to allow them to present some of their most recent findings.