Publishing of routes recorded with GPSCycleComputer on Google Maps is super-easy (via Honza Koutnik).
1) save the recorded route as KML file
2) make the file available from internet (remember its URL)
3) go to Google Maps, use URL as a search-term in Search field:
MTB training recorded with GPSCycleComputer (track of MTB Podkrkonossky maraton)