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GIS at UCD and on the Web: GIS Resources

UCD Library GIS Guide

Applications, Tools, Repositories, Data

Ireland's open data portal. Promoting innovation and transparency through the publication of Irish Public Sector data in open, free and reusable formats.


Do-it-yourself-gis : 20 free tools data sources for creating data maps

The Open Education Database has compiled links to free and open source applications and data sources which make it possible to create complex and robust data visualizations in the form of maps that display statistics and poll results.



ELOGeo Repository

This is a digital service that collects, preserves, and distributes digital material about open geospatial data, software and standards, in order to facilitate the digital preservation and scholarly communication in the open geospatial community.



Free GIS Data

This page contains a categorised list created by Robin Wilson of links to over 300 sites providing freely available geographic datasets.



GIS Lounge is an information portal primarily relating to the field of geographic information systems. The purpose of this site is to provide introductory text for issues relating to GIS as well as interesting news items, tips, and resources for the geospatial field. This site is run by Caitlin Dempsey Morais.

GISGeography.Com is a website about Geographic Information Systems (GIS) and Geography. Content comes in the form of well-crafted infographics, guest posts and comprehensive lists. Examples of topics covered include: Magnetic North vs Geographic (True) North Pole ; GIS Spatial Data Types: Vector vs Raster ; Free Global DEM Data Sources - Digital Elevation Models ; 27 Differences Between ArcGIS and QGIS ; Choropleth Maps – A Guide to Data Classification




Provides links to data sources, offers suggestions and advice on how to structure and display data.


Map Express

Map Express is a free-to-use desktop product from Cadcorp. It can be used to read many data formats, e.g. GIS, CAD, web and database.



The Open Geoportal is a collaboratively developed, open source, federated web application lead by Tufts University along with Harvard and MIT to rapidly discover, preview, and retrieve geospatial data from multiple repositories. Registration is required to view some datasets. Click here to read about the OpenGeoportal initative.



This is the UK open source for free geodata. Find and share geospatial datasets here.



This is a university-wide resource and research center at the University of California, Santa Barbara. The website includes many resources and presentations.



Spatial Decision Support Knowledge Portal (SDS)

This site from the University of Redlands, California has case studies, data sources, tools and much more to help one understand the spatial decision process, how t o teach it, what is involved and what some of the key resources are.


WeoGeo - Geospatial Library and Market for GIS maps, CAD files, and raster data  

An option for storing, managing and sharing your GIS data and map collections.

World Resources Institute

WRI produces maps, charts, data sets, infographics, and other visual resources. WRI is a global research organization that works to turn big ideas into action to sustain a healthy environment.

Tools for Finding and Converting Coordinates

General information on geographical co-ordinates and map projections are provided here on the ICA Commission on Map Projections website

Link to OSi co-ordinate converter:

The OSI website also provides a free downloadable co-ordinate converter at:​