Cartagen

Lovely representation of OpenStreetMap data using canvas.

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Welcome to Medieval Murder Maps

CSI London, York, and Oxford:

Discover the murders, sudden deaths, sanctuary churches, and prisons of three thriving medieval cities.

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Our Maps Don’t Know Where You Are – The Markup

I wish more publishers and services took this approach to evaluating technology:

We scrutinize third-party services before including them in our articles or elsewhere on our site. Many include trackers or analytics that would collect data on our readers. These may be standard across much of the web, but we don’t use them.

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Mapping a World of Cities

A timeline of city maps, from 1524 to 1930.

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geoTrad - Google My Maps

Well, this is a rather wonderful mashup made with data from thesession.org:

The distribution of Irish traditional tunes which reference place names in Ireland

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getlon.lat

80 geocoding service plans to choose from.

I’m going to squirrel this one away for later—I’ve had to switch geocoding providers in the past, so I have a feeling that this could come in handy.

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Choosing a geocoding provider

A did a little experiment to find the right API provider for thesession.org

Progressively enhancing maps

How I switched to high-resolution maps on The Session without degrading performance.