Bing Maps is already built into Galaxie  Blog, however, you need to enter your free Bing Maps API Key. 

To get a Bing Maps API Key, go to https://docs.microsoft.com/en-us/bingmaps/getting-started/bing-maps-dev-center-help/getting-a-bing-maps-key and follow the directions. Unless you plan on having unusually busy traffic, you should not have to pay for an enterprise plan. Once your done obtaining your personal blog's API Key:

  1. log into the Galaxie Blog Administrator
  2. Click on blog options
  3. Click on the Bing Maps Library Ribbon
  4. and enter your Bing Maps API key.

That's it, you should now be able to use Bing Maps as your Blog Enclosure and embed maps into your blog post!