You can use MurmurMaps to create quick and easy custom maps, which you can embed on any other website inside an iframe. The filtering options have corresponding URL parameters, which make it very easy to link to, and embed specific maps on your own website.
Here’s some demos:
Community Exchange Projects around the world
The map below shows Community Exchange groups around the world which trade via barter, time and mutual credit, using the following code embedded in a, iframe: https://murmurmaps.murmurations.network/clusters/d75e3d45-b07b-4d5e-88ac-d293353a3ec2/embed?showSearch=true
Co-ops in London
Using this URL embedded in an iframe: https://murmurmaps.murmurations.network/clusters/06196945-ca0e-4ebd-a154-3754ffd30af7/embed?showSearch=true
Transition Groups around the world
Using this URL embedded in an iframe: https://murmurmaps.murmurations.network/clusters/832462d1-94eb-47bd-a6ae-0957bfd57a53/embed?showSearch=true
Check out the URL parameters you can use to create your own filtered maps.