Three months into posting data on my web service -
Part V - I created a short list of free data for Great Britain on my Map Catalog called
GB Freebie.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsb-A5onEz2rur8bu7VOs2hsCuBZqH179kOIRdBzC0hbhfij17znV8LsGvrdR23uAiO1THY5SkHpveEWQVIzkKIwKEUqYYndcfR4lPql9GDmTxXA5c5c2yUOmmgvsePui7_an395Ted6s/s1600/mindthemap.png) |
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While that post details the offering, let me go over some lessons learned in using Mapcentia stack on AWS:
- both services operate as described on the package and are a pleasure to work with, really
- upgrading AWS from Micro to Small allows to post rather large datasets at a nominal fee
- geoJSON file formats are far easier to upload, and Esri, FME and QGIS offer tools for that
- like any flat file format it has size restrictions, so that for ex. UK Counties needed splitting with the following county & coastline data densities varying the coverage area for a constant file size
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNpuxII4QijKABxhyphenhyphen8vy28O6-QdckcO13aK69iklBWYd3mygGdVcmoBfZrEnwGD0DCLFkLmQSFWriPoWm1KmoEWMbs33lej8TVt92aeGHiNeOfvrLfgXffNa7ART_pvmSCtRa8-TsQ_WQ/s1600/OScoverage.png) |
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- the Mapcentia stack is on ongoing project that keeps improving its interface and capabilities
- last but not least, info buttons in the table of contents allow to post metadata for all layers
So to reiterate my Map Catalog post's conclusion: This further illustrates how relatively easy it is to post freely available datasets "with a little help from my friends" [...] So go ahead and explore more from RT Wilson, UN Data, Wikipedia or many others!
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