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Google Maps tests new pop-up ads that give you an unnecessary detour
(www.androidauthority.com)
This is a most excellent place for technology news and articles.
Openstreetmap is really good...except for the detailed information about shops which is why I still use Google Maps if I need to know opening hours and other information.
OSM is just not widespread enough to be on the radar of shop owners to put their information on it themselves so volunteers have to do it. :/