Daring Fireball: How to Block the DiggBar
http://daringfireball.net/2009/04/how_to_block_the_diggbar

How to PLC ladder http://program-plc.blogspot.com/

"Digg sends a tremendous amount of traffic to sites that make it to the top of their front page, but it’s the worst kind of traffic: mindless, borderline illiterates. Good riddance, really."