GMap4JSF is another library that integrates the Google Map API into JSF. Although the starting point is the same, the provided functionality and implementation is different.
Besides the technical differences between the two libraries, there is also a functional difference. Both libraries can represent a map with makers, quite obviously since it is the core of the Google Maps API, but the additional features differ. GMap4JSF supports the use of eventListeners, polygones and the display of custom images. MapFace on the otherhand allows clustering of the markers, searching of specific markers based on some keywords associated with a marker and the route planning between markers.