If you had a Citrixxperience login in the past, it will not work on the new site. The reason? You no longer have to login to Citrixxperience to view and purchase the exam prep products like you did in the past.
If you would like to use the social networking aspects of the site, like commenting on the blog posts and connecting with other users, you can either create a new login or login with your Facebook account.
To create a new login, click the Sign Up link on the top left of the page. After signing up, you can login by clicking the Log In link on the top left of the page.
To login with your Facebook account, click the Log In link on the top left of the page and click the blue F Connect button. Enter your Facebook credentials. If you were already logged into Facebook, when you click the blue F Connect button, you will automatically be logged into Citrixxperience. Pretty slick, huh?