Actually our Google Map Builder works with both address and lat/long
imports, so you can generate your CSV file and use the Import tool to plot
the locations from the CSV file to the map. Maybe you can let us know if
you have any questions for your import, and we can help checking your map
directly.
In case you have not sign up for a trial on our iMapBuilder Online mapping
tool, please create a demo account from this page:
http://www.imapbuilder.net/loginAfter you have logged in, please choose the Custom Google Map option in the
start wizard and choose the default map you want to use. Then, follow this
user guide article for importing data from your Excel/CSV file.
http://www.imapbuilder.com/gmap-builder/map-editor-user-guide/import_excel_spreadsheet_file.phphttp://www.imapbuilder.com/gmap-builder/map-editor-user-guide/copy_and_paste_from_spreadsheet.php