Dave/workspace/Google login urls

The following is a survey of Google login urls (because I couldn't find it documented). I'm trying to find the best way to point people to a particular service with a particular account, minimizing possible multi-account confusion.

There is no one answer, but here are some recommendations:

• https://accounts.google.com/AccountChooser?continue=targetURL
• https://drive.google.com/a/domain

accounts.gooogle.com

Google (not apps)

url	Accounts logged in			notes
	none	one	both
https://accounts.google.com/ServiceLogin	standard blank login	Password prompt (with option to "Sign in with a different account")	Password prompt, for account logged in longest	From any Google service, is the url forwarded to or provided by the "Sign in" button.
https://accounts.google.com/AccountChooser	Forwards to "ServiceLogin"	"Choose an account" dialog, with account listed and "Add account" option	"Choose an account" dialog, with accounts listed and "Add account" option	Target of standard login page "Sign in with a different account" option
https://accounts.google.com/AddSession	Forwards to "ServiceLogin"	standard blank login	standard blank login	Target of "Add account" option on standard "AccountChooser" page

To go to a particular Google service after loggin in, just add the "continue" parameter with a url encoded target url.

Google Apps

Can we gain usability be using Google App urls? Google App urls are often Google service urls with "/a/domain" after the domain (e.g. https://drive.google.com/a/example.org). What's a survey of those look like?

Google Apps

url	Accounts logged in
	none	other	both
https://www.google.com/a/domain/ServiceLogin	Domain login	Domain login	Standard password prompt prepopulated with domain account (forwards to https://accounts.google.com/ServiceLogin?authuser=sessionNumber)
https://www.google.com/a/domain/AccountChooser	Regular login	Regular AccountChooser Choosing a non-domain account does nothing (returns to original AccountChooser unchanged). Choosing "Add account" forwards to AddSession	Forwards to Admin for domain (UserHub)
https://www.google.com/a/domain/AddSession	Regular login	Regular AccountChooser Choosing a non-domain account does nothing (returns to original AccountChooser unchanged). Choosing "Add account" forwards to AddSession	Forwards to Admin for domain (UserHub)
https://admin.google.com/a/domain	Regular login	Regular AccountChooser	Admin for domain
https://drive.google.com/a/domain	Domain login	Old style account chooser (https://www.google.com/a/SelectSession)	Drive for domain
https://groups.google.com/a/domain	Groups for domain (though not branded)	Groups for domain	Groups for domain, but with practically random account

The following don't work:

• www and naked forward to admin
• accounts forwards to Apps marketing page