Oh man, just look at this family reunion over here!
I might see what it'd take for a one-time dealio to render a big map and throw it up here...
As for an ongoing regularly-refreshed map, it looks like
Minecraft Overviewer is still actively maintained (last git commit on master was 17 days ago), but I haven't seriously looked at it in at least a couple years. Maybe I'll throw that into the mix when checking out some local options.