Gina Trapani, who writes the excellent “Geek to Live” column on Lifehacker, has created a nifty “Invisibility Cloak” Firefox script in Greasemonkey that blocks a list of websites you specify, giving you access to them only after a certain time of day (you know, like AFTER you’ve gotten some actual work done). You need the Firefox Greasemonkey extension to use it. Here’s a link to Gina’s piece.
Hardware Beyond the Hype