What is the best (Mac friendly) solution for creating a pushpin map from multiple postcodes?
If you are willing to work with a web-based solution, then there are several ways to upload CSV data on a Google Map. For example, as the previous poster suggests, you can program a Google Map using their Javascript API to get a map of all your locations. You can also try our service, ZeeMaps (http://www.zeemaps.com) that allows you to upload a CSV file containing thousands of entries and converts them into pushpins on a Google Map using the address information in each entry. You can have additional columns in your spreadsheet that become custom fields in markers on the map. You can use those fields to search your map. Your map will be available through a Web browser, though, so don’t know if you were specifically looking for a Mac application.