GIS Basics:

What is GIS (615kb)

Why use GIS (50kb)

What you can do with GIS (10kb)

GIS Needs Assessment...A Guide to Getting Started (503kb)

GIS Applications in Municipal Government (244kb)

General:

GIS Cafe - Encompassing GIS site including downloads

GIS.Com - Information guide to GIS

GIS Lounge - Encompassing GIS site including downloads

Earth's Magnetic Field Converter - Geomagnetic Field Synthesizer

Historical USGS Maps - UNH Library

Map Symbols - The Unofficial Arc/Info and ArcView Symbol Page

Spatial-Online - A location for many ArcView extensions

GIS Geography - A website about Geographic Information Systems (GIS ) and Geography.

Online Mapping:

The National Map - Administered via USGS

MassGIS OLIVER Application - Administered via MassGIS

Organizations:

MARGIS - Massachusetts Alliance of Regional GIS

MassGIS - Massachusetts Executive Office of Environmental Affairs
Office of Geographic and Environmental Information

MAAO - Massachusetts Association of Assessing Officers

Software:

Idrisi - The world's leading NonProfit Raster GIS. Located here in Worcester, MA at
Clark University.

ESRI - Environmental Systems Research Institute.
The world's leading commercial GIS.

Global Positioning Systems:

Trimble GPS
Base Station File Downloads for RI, CT & MA