The LotRO Google map is a recreation and extension of the map originally published by Turbine with the Lorebook. After the Lorebook was discontinued, the Google map (tiles created and hosted by Turbine, map functionality provided by Google) was no longer available (although the tiles were still on Turbine's server for those that knew where to look). After a number of requests for permission to restore the map as a fan based map, in 2017, I finally received permission from SSG via Cordovan to use the in-game map resources as displayed by the TerrainMap plugin to publish a Google map. There are a couple of conditions - first, the map can not be monetized or used for advertising, etc. Second the map has to clearly indicate that it is not hosted or maintained by SSG but all assets belong to SSG. Third, permission to display the resources can be revoked at any time solely at the discretion of SSG. In addition to the map of the current game world, I was granted permission to display the original tiles that are still hosted on the Turbine servers - at least until Turbine remembers they got left there and decide to clear them out
So, the link to the current Google map of LotRO is:
http://lotromap.net/terrainmap/google.html
The link to a recreated version of the Google map as last displayed in the Lorebook (sorry, no annotations) is:
http://lotromap.net/terrainmap/turbine.html