Using Third Party Tools
There are third party websites and tools that can help you create and manage POI sets.
TYRE – use Google Earth to create POIs and itineraries with this tool.
POI Editor - POI Editor lets you create, view, edit and convert POI files.
PoiEdit - Save, load, convert and edit POI files with this free application.
Globe Assistant – A one stop shop for applications running on Google Earth, maps, geo-coding, on-the-fly TomTom POI creation, 'Add to TomTom'buttons.
Next step: Test your POI set.