I have some questions: Is the program suited for postcards Can I put in the GPS coordinates? Can I link this with a Google Map? (so I can see my postcards on a map)

Yes, you can use our CollectionStudio software for tracking postcards using [url=http://www.collectionstudio.com/en/help/col_custom.htm]custom collectible[/url] feature, where you can specify all required for your collection fields including GPS coordinate. This GPS coordinate is used in functionality to open specified location for postcard in Google or in Yahoo maps. Moreover you can specify correctly country and use build-in map view with continent detailing.