Software instead of chocolate. Several sites have announced their XMAS Calendar 2012 special Giveaways. Everyday they will give out a high quality, costly software for free from 1/12/2012 to 24/12/2012. Check out the promo links below for more details:

CHIP Advent Calendar 2012

PC-WELT XMAS Calendar 2012

DownloadMix Advent Calendar 2012

S.A.D. XMAS Calendar 2012

Alawar Holiday Calendar: Play A Free Game Daily

In addition, you can check out the Xbox LIVE (German) 2012 Advent Calendar special promos.