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I am looking for WMS Tile Servers that I can consume with "OpenLayers".

One: Are there any good library / resources online that collate WMS tile servers or where is a good place to start looking? (Street maps & others etc)

Two: Are there any free tile servers available?

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Are you looking for software to host your own map tiles, or services that publish map tiles you can display? – JasonBirch Jul 26 '10 at 6:19
Services that publish map tiles. – sphvn Jul 26 '10 at 7:26
up vote 3 down vote accepted

In response to your first question:

For base maps, such as Google Maps or the Open Street Map, a good place to start is the OpenLayers Example Showcase. The following is just a subset of the examples that fetch data from Tile Servers:

For each example, right click and use "View Page Source" to see the javascript that loads layers from the servers.

For your second question:

The free map servers I have worked with are:

In my experience, GeoServer was the easiest to set up quickly due to the fact that it is written in Java.

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MapServer and Geoserver are both full WMS servers and not tile servers. MapProxy, TileCache (both for Unix/Windows) and GeoWebCache (Java) are tile servers that support TMS and WMS-C. – olt Aug 11 '10 at 11:06

I don't know of a directory of available (e.g. public) servers that specializes in tiled WMS, but I do know that GeoWebCache is a freely available implementation of a WMS tile server:

GeoWebCache is released under the Lesser GPL. It works well with Openlayers!

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Thanks for the link :) – sphvn Jul 26 '10 at 6:18

Another alternative is MapProxy which is also written in Python but it released under AGPL 3.0 licence.

It can actually do simple reprojections and layer combining, using PIL(python imaging library) in the background with very good results.

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As an alternative to the Java powered GeoWebCache, you can also use TileCache, written in Python:

It is released under the BSD license and works like a charm with OpenLayers too

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In the services departement, there is also MapBox tile servers:

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This link is dead. Are there any free WMS servers (not server software but open public endpoints to fetch tiles from) ? – codecowboy Nov 5 '11 at 9:54
@codecowboy: Probably meant: – radek Jan 24 '12 at 20:27

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