Before this blog post, I'd always squinted at those chain icons and wondered what in the world they were supposed to be.
Bad visual puns do not usability make.
Sure they do. A chain link connects two physical items, such as chain links or a chandelier or a bicycle lock. A hyperlink connects two web pages. The metaphor is sound and doesn't depend on English, albeit that the hyperlink is unidirectional.
I agree with the first commented in the blog... an arrow that points to a page, or an arrow pointing from one page to another.
Kind of makes me feel stupid for never having thought of it, but I'll be using it the next time I solve this problem!