Cài gmap (myplace) vào blog

Tham khảo
https://support.google.com/maps/answer/3544418?hl=vi
http://thichblogger.com/them-ban-do-google-maps-vao-website/ (có ví dụ)
https://www.youtube.com/watch?v=tmHB6I2Jb7M lấy tọa độ gmap nhúng vào website
http://30slaxong.blogspot.com/2014/11/them-tien-ich-ban-o-google-maps-cua-toi.html