00820nam a2200145Ia 450000500170000000800410001702000180005808200170007610000170009324500200011026000210013030000140015150004950016565000140066020250625171940.0250625s9999    xx            000 0 und d  a9781589481312  a910.285bTAN  aTang, Winnie 0aSpatial Portals  bEsri Pressc2005  a200 pages  aThis book discusses spatial portals; Web sites designed to simplify searching, accessing, and using geographic information found on the World Wide Web. The author says that spatial portals have revolutionized how knowledge about the world is managed, stored, shared and used. He notes that "spatial portals allow us to access a network of information that spans the globe, discover information held by others, and present and share our own ideas, plans and solutions." -- from Introduction.  aComputers