At long last we are seeing the fruits of many years of investment in making the National Library of Scotland’s map collection accessible online. With now something like 6000 maps available, it seems like it was well worth the wait. The resolutions are high and the images look really good. NLS have added a range of geo-referenced historical map overlays, on Google maps and Bing (Microsoft’s search and mapping site has been rebranded and has vastly superior aerial images for parts of rural Scotland). Dig around because there are a range of different presentations that are quite appealing.