In cases like that I'd use the short url that Google provides (http://goo.gl/maps/4y1Xg http://goo.gl/maps/4y1Xg). If Google is down then you can't view the map

In cases like that I'd use the short url that Google provides (http://goo.gl/maps/4y1Xg http://goo.gl/maps/4y1Xg). If Google is down then you can't view the map anyway. Sites providing their own short urls isn't much of a problem as far as I can see.