Organizing information around a specific spatial domain facilitates managing objects presented in visualization layers of the spatial domain. A first portion of a first program for organizing and mapping information around a specific spatial domain is executed by a first virtual system that is created in a program execution environment operable on a network server. In response to the first virtual system invoking a continuation, a second virtual system is created to execute a second portion of the first program. Invoking the continuation in the program execution environment facilitates each of the first and second virtual systems providing only the capabilities necessary to execute their respective portion of the first program. Optionally, executing the first program includes interpreting the first program with a second program.
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