Looking for logging into the App Inventor 2 site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the App Inventor 2 site. After that you can login as usual with your login credentials.
http://www.google.com.ar/url?url=http://ai2.appinventor.mit.edu/
http://www.google.com.ar/url?url=http://ai2.appinventor.mit.edu/login/google
http://www.google.com.ar/url?url=http://explore.appinventor.mit.edu/user
http://www.google.com.ar/url?url=http://appinventor.mit.edu/
https://www.youtube.com/watch%3Fv%3DT9hh3Krd3rA
https://www.youtube.com/watch%3Fv%3Doa39rJEMOhs
https://www.youtube.com/watch%3Fv%3D7tq4BSkMC-A
https://www.youtube.com/watch%3Fv%3DbNg1m9pJdDM
https://puravidaapps.com/oauth.php
https://eixerits.wordpress.com/2013/02/03/a-login-template/
https://stackoverflow.com/questions/25686987/how-to-code-a-log-in-page-in-app-inventor-2
https://www.pinterest.es/pin/364580532313892691/
https://rominirani.com/tutorial-mit-app-inventor-firebase-4be95051c325