With all of the changes to brand pages on Facebook, we are enjoying watching how big brands are opting to roll out the new Timeline. Earlier this month, Coca-Cola unveiled its Facebook Timeline in partnership with some fun flash-based interactive websites.

Coca-cola challenged fans with little puzzles to keep them engaged. One by one, the marketer released little riddles, that, if solved, led you to destinations that provided fun-filled digital treats.

I love the cross promotion and interconnectedness of the strategy, not to mention that the sites are fun. By having fans fill in the blank, based off clues, new interactive sites are rolled out in stages. So far I’ve seen:

• FallingDominoes.com
• ABeachBonfire.com
• BlowingBubblesintheSky.com
• OneBillionSmiles.com

I think the dominoes are my favorite.

The latest clue is