JAVA AND OO
http://java.sun.com : Ultimate source of Java technology from the makers of Java
http://www.java-zone.com : DevX’s design and development topics in Java
http://www.jars.com : Resource list of rated Java applets and applications
http://www.sdmagazine.com : Software Development magazine on-line
http://www.javaworld.com : Java World
http://java.sys-con.com/ : Java Developers Journal
http://intellij.com : Currently one of the best Java IDEs
http://java.com : The source for Java technology users
http://java.net : The meeting place for the Java technology developer community
GIS PORTALS:
http://www.gisportal.com : General GIS portal on mapping, on-line GIS software, …
http://www.gislinx.com : Categorized list of GIS sites
http://news.directionsmag.com : Daily news on GIS products, vendors, …
http://spatialnews.geocomm.com : Daily news from GeoCommunity
http://www.giscafe.com/ : Resources for geographical information systems with
                                        on-line GIS magazine GIS vision
http://www.geoplace.com : Web site of GIS magazines GeoWorld, GeoEurope, …
GIS DATA:
http://www.gisdatadepot.com : Free web-based geo-spatial data repository from
                                               GeoCommunity
http://www.usgs.gov : US Geological Survey with satellite imagery and
                                  terrain elevation data
http://bard.wr.usgs.gov : DEM data of SF Bay Area
http://www.nima.mil : National Imagery and Mapping agency including
                                  publications, standards, digital terrain elevation data (DTED),
                                  SPOT satellite images of Northern hemisphere, and free
                                  software