user_band for drupal User can login the site with other site's account. user_band_api module check whether the email has been registered or not, if the email has been registered, the api module get the user infomation and set the user as login. if not, the api will create a new user with the infomation ( the nick name, the email, and a random password ) and also set the new user as login. images/ some useful pictures. modules/ includes some modules, as the interface for each platform, get the infomation from the platform, and then make user infomation banded by user_band api.