In Global Navigation, click the Account link [1], then click the Settings link [2].
Click the LinkedIn button underneath the Other Services heading.
Click the Register Your LinkedIn Account button. You will be re-directed to LinkedIn to verify the authorization.
Enter your email [1] and password [2] in the appropriate fields. Click the Allow access button to connect your LinkedIn account to Canvas [3].
LinkedIn will now appear under the Registered Services heading in your Canvas settings.