"Secret passages" to content that should be safely behind the paywall? What are they on about? You can't magically link to a full article that's behind a login / subscription unless their site security code is very broken.
If there we doing this right then for non-logged in users they would show a brief intro to the article and a link to the login / subscribe forms.
As funny as it may be, it's actually possible with X and XEmbed. Even though X haters have been screaming for years that network transparency needs to go.
Tetris in Stereogram 3D
Yep, it works. My eyes are bleeding all over the keyboard now. Thanks 8I
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