Stuart, Humphrey, Gethin, Mia
Some definitions of 'accessible' resources: freely, directly, reliably viewable. Ideally able to be linked to (in context of historic maps). Aim is to make maps findable and addressable.
Links between maps and gazeteers... Maps libraries have been driven by needs of cartographic historians. Common library schemas don't support the additional information that's required to make map catalogues generally usable and discoverable.
Difficulties of geo-referencing historic maps leads to discussion of crowdsourcing, with examples like New York Public Libraries 'Map Warper' http://maps.nypl.org/warper/
Geonames (http://www.geonames.org/): has many problems.
CHALICE demonstrator: http://unlock.edina.ac.uk/chalice/place/century/10
Online Georeferencing Tool For Scanned Maps http://www.georeferencer.org/
A vision of Britain between 1801 and 2001. Including maps, statistical trends and historical descriptions http://www.visionofbritain.org.uk/
Discoverability of data sources (gazeteers, geo-referenced maps, etc) is a bit hit-or-miss...
GoGeo http://www.gogeo.ac.uk/gogeo/
OpenGeoportal.org is a new group of geospatial professionals, developers, and librarians working together on a collaboratively developed, open source, federated web application to discover, preview, and retrieve geospatial data. It is also a collaborative effort to share resources and best practices in the areas of application development, metadata, data sharing, data licensing, and data sources.
Other sources like HistoryPin
dpbedia http://dbpedia.org/ - but problematic because URLs are inconsistent and unsystematic
http://archaeologydataservice.ac.uk/
Problematising GIS (point data) vs geo-referencing more widely...
Also crowdsourced stuff tends to be more linkable, but less structured; scholarly stuff tends to be more structured but often isn't linkable (IPR, etc).