The Week on AdFreak

Year-end lists, a stunning Absolut bus-shelter ad, and the season's most notable agency holiday cards

The 10 most-read AdFreak posts from the past week:

1. Best and Worst Agency Holiday Cards of 2011

2. The 10 Most-Watched Ads of 2011 on YouTube

3. Australian Retailer Wishes You a Very Inappropriate Christmas

4. The 10 Most-Viral Fortune 500 Brands of 2011

5. Mary Gets a Positive Pregnancy Test in Church's Christmas Ad

6. MTV Extends 'Sex Is No Accident' Print Ads Into Video

7. Siri Is Santa's Helper in Christmas iPhone Ad

8. Absolut Bus-Shelter Ad: One Piece of Paper, No Paints or Inks

9. Airline Lets You Pick a Seatmate by Looking Through Facebook

10. Animation and Visual Effects: The 9 Best Ads of 2011