Advanced GeoSpatial Inc.

Useful Sites on the Web

AGI Web Links

Below are some weblinks and tools that we find useful and may be helpful to you as well. Because AGI is headquartered in Tallahassee, Florida, these links tend to be Florida-centered

GIS Data

It's all about the data, and many of our projects rely on good data sources. We strive to always use the "best available data". The power of accessing existing data via the internet is not to be underestimated in enabling a good GIS project to be the best it can be. These links offer some great sources of data we commonly use.

Florida GIS Data Sources
  • Florida Geographic Data Library
  • Florida Imagery
  • Florida Department of Environmental Protection GeoData Directory
  • Florida Department of Transportation GIS Data Directory
  • Florida Department of Revenue Parcel Download
  • Contact List of Florida Property Appraisers – many have GIS data available
  • Florida Natural Areas Inventory GIS Data
  • University of Florida Aerial Imagery Seach


    • Topographic Maps and other Map Information
  • View USGS Topographic Maps online Topozone.com
  • Locate and download your USGS Topographic map in PDF format from the USGS
  • Download Florida USGS Topographic maps for use in GIS (raster format)
    • US GIS Data Sources
  • US State Clearinghouse
  • NOAA Data Sites
  • Bureau of Transportation Statistics
  • USGS National Atlas
  • USDA GeoSpatial Gateway
  • USGS Land Processes Distributed Active Archive Center
    • GIS Discussion Groups
  • Spatially Adjusted
  • GeoReference
    • Free or Low-Cost GIS Applications and Sources

    For those looking to deploy the power of GIS without a large, upfront software cost, the links below provide some free or low-cost alternatives to GIS packages.

  • Christine GIS website
  • JUMP Unified Mapping Platform
  • TNTlite®
  • Google Earth
  • FreeGIS
  • GeoServer
  • User-friendly Desktop Internet GIS (uDig)
  • MapWindowGIS
  • Geographic Resources Analysis Support System (GRASS) GIS
  • Quantum GIS
  • TatukGIS
    • GIS Organizations
  • Seven Hills Regional Users Group (SHRUG)
  • URISA – Florida
  • American Association of Geographers
  • ASPRS (Imagery)
  • GIS Certification (GISP) program)