I started writing a lovely little map on showmewhere.net for my upcoming talk at HSS, mapping the locations of advertising medical institutes in Chicago 1880-1950, which shows very conclusively how ubiquitous these places where, even if they are pretty obscure now. However, showmewhere has been down these last few weeks and I’m not sure how to map my data. I downloaded the googlemaps API, but I don’t have the skills to work with it easily. Any ideas? Other useful web applications for creating interactive maps?