GOF design patterns in C#

Hi,

 

Till few days back, there were very good link on this site for GOF design patterns in C#. There were one main page for this giving short description for each design pattern. Each individual design pattern had hyperlink for detailed description. There was such a nice description and example for each GOF design pattern in C#.

 

I am not able to find that page/link now. Has it been removed. Can we get it back. That was very helpful content. Please someone help for this to get that content back.