How do you highlight pictures which are links?

A blue box, label 'click here', what are the options?

[steve]

We all know that text links should be blue and underlined, and that button links should be 3D or raised.

But how do you tell a visitor your cool picture is actually a link?

A blue box ruins the look of your site. Lots of 'click here's' look naff.

What do you do to highlight your pictures as links?

[Quadrille]

If you choose not to use the blue outline, then either your page design must make it obvious, or you must tell the reader - with a 'naff' phrase.

A better alternative would be to have a clickable picture caption, thus removing any confusion, and assisting in SEO.

Don't forget the appropriate ALT text, too.