Can I use OpenID delegation with a standard Google account?
71384
Delegate OpenID to Google (NOT Google Apps)
59257
Is it possible to get the user's apple ID through the SDK?
90040
How to migrate local user to domain user?
154859
Are multiple-users protected from each other differently than apps?
45134
How to use OAuth only for login, not create account unless the user wants one
120386
How to remove the association between two Gmail accounts?
151665
How to tell Google Chrome to use my Keychain
142885
Is it possible to transfer a domain without a "gap" in Whois privacy protection?
36877
Why is global auth disabled?
65668
changed primary email in google account. how to log in?
137194
How to identify a Google OAuth2 user?
106913
Is there any way to tell Google to use a particular account for all Google services by default?
15223
Is it OK to require users to have a third party login account?
55093
How can I add a Stack Exchange login to my preexisting account?
152452
How do I access my previous StackExchange myOpenId account?
18092
How do I change the email address associated with my Stack Exchange OpenID?
156688
How do I protect my Google/Gmail account?