You shouldn’t be looking at any listing Guust! – my site has somehow received a like (at the top of my home page), but interestingly enough not on any of any other pages. I must admit to not being a ‘Facebook Person’ and not up with how it all works – I assumed that people on facebook can show their appreciation of my site in their Facebook world and that someone had done so. It was visible in Firefox (on my home page), but only fleetingly on opening the page in Chrome: it appeared, then the map re-loaded (geo-locating?) and the Like count reset to 0. I turned geolocation of, reloaded page, and now Chrome shows the correct count, even with geolocation on – However, the correct count only shows on homepage, and shows 0 on all other pages I have tested.
Your asking ‘which listing?’ makes me wonder: can people who live in facebook-world choose to like either my site or any of the listings, with all appropriate counts being kept?