As every year, the German website Chip is hosting a daily giveaway or promo of some kind, starting on the First of December and ending on Christmas Day.
Each giveaway is offered for period of 24 hours only.
At this time, it seems the calendar has not been extended to Chip.eu.
Web Page:
http://www.chip.de/news/Adventskalender-Jeden-Tag-eine-Gratis-Vollversion_39155701.html