Online Map Archive: An Irish Genealogist's Spot of Gold

"the Irish government plans to unveil an online map archive with details of every town, street, and farm on the Emerald Isle dating back nearly 200 years -- an unprecedented achievement expected to be a treasure trove for those tracing their Irish ancestry." See the site at http://www.irishhistoricmaps.ie/historic/ (source: maps-l).

The Geography Matters Blog

If you have not seen this blog called "Geography Matters" by ESRI, please check it out.

National Geologic Map Database Map Catalog in Google Earth

USGS and the Portland State University Geology Department have developed a prototype that displays National Geologic Map Databse (NGMDB) Map Catalog search results in Google Earth. Please see this site at http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html
I think this is exciting news. After you test this site and want to provide comments on this prototype, just click on the comments link on that page to further improve this project(source: maps-l).