openId login to stackoverflow
18030
myOpenID shuts down February 1, 2014; add an alternative login method to your account
153704
Log-in flow on chat.stackexchange.com and stackexchange.com b0rken
73678
Develop rich API exposing Stack Overflow functionality
36749
Android app needs to access stackexchange.com
54833
Does Stack Overflow have a special Google integration?
88786
My OpenID provider is shutting down; how do I change my Stack Exchange login?
125108
Unable to link OpenID on Stack Overflow with SourceForge
143137
Unable to login to Stack Exchange iOS application
32951
Authenticate to Stack Exchange using GitHub
18284
Option to add a Stack Exchange Login to Existing Account has gone AWOL
80977
Cannot log into Area 51 with OpenID
45134
How to use OAuth only for login, not create account unless the user wants one
41233
"OpenID 2.0 for Google Accounts is going away"; will this affect Stack Exchange?
18092
How do I change the email address associated with my Stack Exchange OpenID?
33564
How to programmatically login/authenticate a user?
27216
How do I remove an OpenID or login?
25495
Can't log in to the Stack Exchange app with a Google account