http://nationaldayofunplugging.com/, and I urge you to as well. I did it this year and it was AWESOME!!!
When you go there, you can sign the pledge, learn a lot and download the "I Unplug To" sign. Then you can snap a photo like I did and upload it to the site.
No harping here. Just my wish for a Shabbt that is truly Shalom for you and yours. I wrote about it at http://nextleveljewisheducation.blogspot.com/2013/02/a-gift-for-shabbat-digital-detox.html before the fact, and after at http://nextleveljewisheducation.blogspot.com/2013/03/shabbat-unpluggedhow-it-went.html.