Implementing Google Accounts' OpenID like Stackoverflow

Firstly, This question may be asked. But I could not get the information i am looking for. I am creating a website which should take to google.开发者_JS百科com where the user enters his account information and it redirect back to my website similar to how stack over flow is doing when we click on gmail image.

I am trying to implement a website in .net.

Please list a step by step procedure to implement it or suggest some documentation to follow. I clearly dont want other types of openID implemention where u enter the open id and pick ur open id provider.

Thanks in advance.

Check out below articles:

1. http://www.code-magazine.com/Article.aspx?quickid=0907061

2. http://www.west-wind.com/weblog/posts/899303.aspx

Both has shown example using DotNetOpenAuth - The former list other library named ExtremeSwank.

I used www.janrain.com and it was simple enough to do.

It also has the advantage of allowing you to use other vendors without any extra - not only gmail.

Oh, and it's free!