Andrew Zolnai Blog

Esri just updated its World Vector Basemaps (v.2) . I updated below the notoriously complex and details Aalan Archipelago offshore Turku, Fi...

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Last week was the inaugural post of my catalog , highlighting maps from this blog in (very) roughly reverse chronological order. The second...

[ Update: this was summarised into a story map here  posted also on this blog here ] Two years then one year ago I QC'd UK Ordnanc...

More and more free data are available that are quality-controlled and verifiable. Guardian Data Blog 's @smfrogers (now at Twitter) was ...

Last I posted on vector online GIS, and that appears to be gaining traction. Mapbox offers through TileMill and OpenStreetMaps editing. Thes...

[ Update: ESRI blog post here for clear explanation and treatment of same, thanks Eileen Buckley! See also my ArcGIS Online / Amazon Web ...

[ 03 Nov 13 update : "relooped the loop" by testing the corrected Ordnance Survey data Feb 2013 update: Ordnance Survey cartogr...

Is it spring in the air or LinkedIn's new (to me) facility to post projects? Here is a round-up of various projects in the past five yea...

[2013 update: Socium is now 1SpatialCloud ] Three weeks ago  I introduced Socium's Online Validation Service (OVS). I showed the Ordna...

[ Update: follow ups for this project are Releasing Data Really Works Part I and Part IV ] Following vector maps on the web (cloud futur...

Will spectacular outages of AWS and now BT cloud services casts a pall over the excitement that has reached even politicians ? And now com...

HTML5 Canvas was a natural extension for giscloud.com :  Its distinction is to post vectors on the web, overlaying rasters like any GIS, and...

James Fee cracks me up every time. First he does not dance on ArcObjects' grave but praises it, secondly he exults Google Earth Build...

[rhymes with: Baaack in the USSR ] After a brief hiatus trying my hand outside ESRI, I'm baaack... posting maps on arcgis.com . Daniel S...

The FOSS4G conference early this month in Barcelona raised a host of issues as usual. One picked up by James Fee and Jo Cook 's blogs ...

Slotting straight into my previous post, ESRI just released ArcGIS Explorer (AGX) online and arcgis.com as the new ArcGIS Online (AGO). I...

Eyjafjallajoekull volcanic ash blown southeastward caused air traffic disruption last week over the northern British Isles again. I post the...

I posted earlier an example of a simple Google Map reading a list of Olympic cities - this was part of a list of Google and OpenLayer maps ...

New UK Ordnance Survey OpenData Bounday Lines released this month , show changes compared with the original public release in April of Octob...