Affiliate of the International Planetarium Society and the National Science Teachers Association. Contains society information.

Disseminates information and coordinates programs through publications and conferences. Contains society and member information.

Organization of professional planetarians. Contains organization, events, and publications.

Represents public and school planetariums from Maine to Virginia. Contains member and conference information.

Contains membership list and newsletter.

Includes links to each member site and organization information.

Contains information and membership list.