Outlining the opportunities, developments, challenges, and issues that are impacting the geospatial industry, this guide discusses system design alterations, development, and management strategies for GIS professionals. Spatial portals and how they are revolutionizing the way people manage, find, share, and use geographic knowledge--from the local level to the world stage--are discussed. The manner in which spatial portals help people search for and access networks of relevant information held by local, state, and federal governments, and other organizations is also covered.