John Gruber has [called attention] to Digg's shameful revival of site framing, and I share his disgust. Though I've no expectation of Digg traffic to my little blog, on principle I feel compelled to participate and block the DiggBarr from obscuring my URLs.
Phil Nelson and Shawn Medero's [DiggBarred] handles this nicely for Wordpress, using server scripting to present a different page to browsers loading into a DiggBar frame. But to be polite to my little server slice, I like to use [WP Super Cache] in "full on" mode, which precludes consistent per-request processing by plugins.
I could use Apache mod_rewrite rules to similar affect, but that's another layer of configuration I want to avoid and is, like PHP solutions, Digg-specific.
Perhaps we should refine the typical frame-busting approach (detect when the page is framed and reload the window directly to the page) and take a frame-embracing stance (reload the page with their frame):
I've put that code here for testing, which can be seen by viewing this post's Digg URL: http://digg.com/u1mst.