Google Earth and Google Maps are probably the most popular, free online cartography reference tools for the public.
Popularity is not the same as authority:
The lines that Google draws on maps have no government’s imprimatur.
How an online map almost caused a violent conflict
If Google Maps show borders or place names that are different from official or long-established usage, they can confuse, offend or worse:
On Nov. 3, 2010, a Nicaraguan official justified his country’s incursion into neighboring Costa Rica’s territory by claiming that, contrary to the customary borderline, he wasn’t trespassing. For proof, he [cited] Google Maps.
Google should not be involved in geopolitical disputes
Google DOES try to offer meaningful, accurate maps.