OpenID for websites similar to the one at stackoverflow

Question

Possible Duplicate:
How do you enable customers use their openid on your website, just like stackoverflow?

Duplicate of:

How do you enable customers use their openid on your website, just like stackoverflow?

I need to create a login as the one shown at stackoverflow, the openid, google,yahoo etc. how do I get about doing the same.

Answer 1

class for PHP:

http://openidenabled.com/php-openid/

Answer 2

Please read this question.

Answer 3

http://code.google.com/p/dotnetopenid/

If you're using .NET

Answer 4

Google API

Answer 5

I might point out that stack overflow also uses the openid-selector lib

Answer 6

Stack Overflow uses this library for the smoking hot javascript interface: http://code.google.com/p/openid-selector/

You can see the code they're using at http://sstatic.net/so/Js/third-party/openid-jquery.js

Answer 7

I used RPXNow on one of my sites. They handle the UI for you if that's what you want.