Archives Normandie 1939-45 was a good French language website with free resources about Normandy in WW2. It seems to have stopped being active sometime in 2012.

http://www.archivesnormandie39-45.org/

Now available with very limited functionality using the ‘Wayback Machine’:
https://web.archive.org/web/20120530082030/http://www.archivesnormandie39-45.org/

http://www.archivesnormandie39-45.org/

“sur le premier site au monde

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