Enter a map link from an OSM related site or from Google Maps; this page will try to convert it and to open it with a different map. It is also possible to use geographic coordinates like [N 50° 46.47 E 6° 57.48] or [N 50.94117 E 6.95808].
Any broken links? Do you miss any OSM related map site here? Please write to hatto@salesianer.de