> Pega Discovery Network on the Designer Studio header, click 
on the Designer Studio developer task bar, or visit
http://pdn.pega.com. Registration is required.The Pega Discovery Network (PDN) is a website that helps members of the Pega project team community successfully implement Pega solutions by allowing them to discover, learn, and share knowledge and best practices.
To access the PDN, select > Pega Discovery Network on the Designer Studio header, click on the Designer Studio developer task bar, or visithttp://pdn.pega.com. Registration is required.