How to Silence Kim Kardashian (for a Day).

This week , Kim Kardashian will shut up. Well, it'll only be on Twitter and Facebook. And it’ll only be for 24-hours. Because it’s for a good cause, that is more than enough for me.In honor of World Aids Day (12.1.10) Kim, Alicia Keys, Lady Gaga, Justin Timberlake, Usher,  Ryan Seacrest, Jennifer Hudson, my homie Serena Williams and more will, ‘sacrifice’ his or her own digital life: They will ‘die’ (stop communicating ) via Twitter and Facebook for a full day and night and they will not be resuscitated until their fans ‘buy’ their lives back (that is, donate $1 million to the Keep A Child Alive Foundation, which finances medical care and support services for children and families affected by H.I.V. and AIDS in Africa and India).About two months ago, Keys and her charity's co-founder, Leigh Blake, started Buy Life, which sells $35 gray T-shirts imprinted with a bar code. People who have uploaded a Stickybits or Wimo application to their smartphones can donate $10 to Keep a Child Alive simply by scanning any Buy Life T-shirt's bar code.They call it ‘Impulse Giving.’ I call it smart.  Find out more.