The brands which know secrets of viral advertising win people’s hearts. This year, the range of public favorites included know-all Isaiah Mustafa holding a bottle of Old Spice shower gel, a guy in Levi’s jeans who embarked on a trip across America, sport celebrities commissioned by Nike to star in spots about their future and many more. Let’s look back to explore which videos, to our mind, were the most contagious this year.

While most of brands spend the pre-Christmas time celebrating the season and musing over the biggest events and achievements of the year, the others use this time as a chance to unveil what they’ve got in store for their consumers in the year to come.

adidas, the world’s leading manufacturer of top class sport and casual clothing, revealed their Spring/Summer 2011 collection of footwear and denim clothes. The brand invited representatives of mass media and urged them to keep the place, date as well as any names a secret until the official announcement of the event comes out.

A plethora of brands create a range of products to pay homage to the cities around the globe—Coca-Cola‘s Fanta Absolut Vodka’s vibrant bottle designs and Nike‘s collection devoted to five NYC’s boroughs come as most notable examples of this ‘geographical’ movement. adidas is not an exception with its City Series editions, which celebrates a range of megalopolises with Boston, London, Tokyo, Paris, Oslo and more among them. Now, the brand decided to step out of the stores and pay tribute to one of the cities by a nice campaign, «We Are London,» which is dedicated to younger generation of pioneering and creative minds.

On November 9, adidas exclusively unveiled the new spring/summer 2011 Women’s TechFit™ collection at the spectacular Stadtbad Oderberger in Berlin. This very feminine TechFit™ apparel was developed in collaboration with the Staatsballett Berlin, which features the most recent adidas ambassador Alessandra Pasquali, together with some of the many ballerinas from this international ballet company.

adidas has launched a global sport marketing campaign dubbed “Danger Makes Legend” and is now inviting football fans to put their stills to a test by playing an online territorial and map-based game against their friends from Facebook or sport celebrities. The players from all around the globe are invited to the digital space where they can choose what city they are going to take over by using well-known football techniques.

Coty is calling for moves. To promote the new product, adidas Moves Pulse, the global fragrance and the iris creative agency presented a website, which also serves as a platform of the new contest, encouraging US high school students (13 years of age and over) to showcase their inspirational moves for a chance to win $15,000 for their High School and $1,000 of adidas gear for them and their team.

Now we are all witnessing the era of switching to green concepts, and most of the global brands are trying hard to change out life for better by introducing new approaches to making industries more eco-friendly . This dedication became the basis for the Eco Index, launched earlier this month and described as a “ground-breaking environmental assessment tool designed to advance sustainability practices within the outdoor industry.”