Enchanted Learning
Enchanted Learning: Types of Maps
Enchanted Learning provides an easy-to-understand explanation of projections. Site also provides a graph of related terms such as conic projection, cylindrical projection, Mercator projection, and more.
University of Washington
Pacific Northwest Labor and Civil Rights Projects: Seattle General Strike
A comprehensive look at the Seattle General Strike, which began in February, 1919. Here you will find an explanation of why the strike began, an interactive map of the location of important events, oral histories, contemporary newspaper...