Approximately one-half of the entries are concerned with the general geology of high-hydrate potential regions, permafrost characterization, and the chemistry of clathrate compounds. Natural gas hydrate-specific literature is relatively rare, although more articles appear each month. Reports of modeling work, laboratory investigations, field experiences, and incidences of natural core recovery have increased steadily as interest in natural gas hydrates grows. These entries in this bibliography include current journal articles, books, reports, proceedings, conference or symposium papers, and foreign publications. Some of these publications date back to 1823. For the researcher or interested individual, this bibliography is a resource that includes information on general and specific hydrate characterization, history and state-of-the-art exploration, and gas production activities.