What was big in 2011? We all know the main news stories-Oprah ends her iconic daytime talk show, uprisings inspire change across the globe, Will and Kate say "I do" at Buckingham Palace.

But what was big for marketers and advertisers this year? Our friends from the AOL Advertising Blog are launching a series of posts highlighting the biggest stories in the industry.

Each day this week they will explore what was big this year for consumers and advertisers in different industries-retail, technology, finance and autos to name a few. Check out the AOL Advertising blog or look for a recap here later this week.

To see what we thought were the biggest news events this year, check out 11in2011.aol.com.