There is no disputing that Facebook has a massive audience. One challenge that advertisers are facing is how to truly engage Facebook users’ attention when they primarily visit the site to interact and share with friends?  Word-of-mouth is often the most effective form of advertising and channels like Facebook can help it’s viral spread, but how do you cause people to act as champions for your brand and products? You have to somehow involve your products in their social interactions.  IKEA’s advertising agency found a clever way:

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