Client Secret :
Redirect URIs :
you can find it after you are finish API Acces setting ( PloBlogger API) and fill it , then save PloBlogger plugin , and press connect with your Blogger Button (at Footer of plugin preview page) But it not work have any Error !,you don't panic Because of JSON API not finish, in the second day you are have The E-mail from Blogger JSON API and connect to The Google APIs Console again and get new Client Secret in API ACCES and fill it again in the basic option ,press connect with your Blogger again ,it will display to application approved page and approve the API, all right now you can connect to blogger (wow !!) read more information at http://phonglo.com , http://blog.phonglo.com