I noticed problems with the ... more places map this morning, where the markers and map controls can't be seen.
I think it is related to Google ending support for an older version of their map APIs. As a short term fix I've switched the maps to use the Open Street Map (OSM).
Longer term I'm guessing we won't get Google maps back until I've finished the upgrade of the site, and we can use their newer APIs.
If you notice other maps aren't working, please leave a comment below with the link to the page.
Regards, David