With Quae Map plugin You can include Google Map on Your website as a sidebar widget. You can also use a shortcode to put Google Map anywhere else on Your website.
Both widget and shortcode are customizable. You can provide address that should be marked on map as well as Lat, Lon values (if Lat, Lon are not set, provided address is used for geocoding). You can also choose which controls should appear on Your Google Map. Plugin is based on Google Maps API v3, no iframes used. Multiple maps can be included on one page.
By default map (both widget and shortcode version) is coded as responsive.