And I'm starting a little late too.
Basically, I'm fasting the entertaining side of the internet.
As my wife can tell anyone who asks, I can spend countless hours in forums & social networking sites (Diaspora especially recently - it's like facebook, but with privacy and varied & intelligent people - nothing against my FB friends - if you read this you're probably not the dumb ones ;-))
But between now & easter I'm giving up* the forums and social networks. Now I need to make sure the extra time is invested usefully.
*quick addendum to that - I may try to keep up with people on FB through my phone. Why 'doesn't this count'? Because a phone is a damn silly way of using facebook, and I couldn't bear to be on there for hours.