site selection resource:

. . . something drawn upon or available to be drawn upon and used while doing site location work aka location work. Site selection is . . . the component of enterprise development that is the choosing of a location and/or a real property item for expansion or relocation, or for startup of a new venture (source of quote).

The website you are using, Site Location Assistance, is so named because site selection resources are available here. SLA is one of three websites that make up a share network.

Among the resource and service providers called upon during site selection projects are location data suppliers as well as property owners and their real estate representatives. See the answer to the following question for more information about resource and service providers involved in enterprise and economic development:

What is the makeup of the network core user group?