Oh, case studies. This week really was somewhat of a Christmas miracle — there were so many great examples of brand advocacy campaigns that I actually had a list to narrow down. I was like a kid in a candy store. But, I digress. The idea behind this week’s post is that brand advocacy in action can function as more than just a campaign idea — it’s a paradigm shift that can greatly increase the level of ROI that you get from your marketing efforts. After all....