we have not added any of our directory information to google places, unfortunately some household brand directories did sell google all their data + combined with googles own organic places data, it seems to be these data 'connections' between our directories data and google places's own data which seems to be causing the show to map functionality. It's also way beyond the scale of reporting them as incorrect, we are talking about potentially hundreds of thousand of business information listings here.
We did markup our content with microformats on one site but the 'show map of' links have appeared on other sites which are completely seperate and not running the microformat markup code
any ideas? I suspect there is nothing we can do about it