google maps - markerWithLabel in googleMaps causes Infowindow to be displayed faraway from markerClick - Stack Overflow
GitHub - googlemaps/js-markerwithlabel: Google Maps Marker with Label
google maps - in markerwithlabel, labelcontent not displaying - Stack Overflow
GitHub - rdeguzman/markerwithlabel: MarkerWithLabel is a git clone of a google maps utilitiy library hosted in googlecode.com http://google-maps-utility-library-v3.googlecode.com/svn/tags/ markerwithlabel/1.1.9/
Google Maps Javascript API, MarkerWithLabel z-index - Geographic Information Systems Stack Exchange