If you've ever been to dig the entries of any advertising festival, you'll realize that the last trend is doing case-studies for every single entry. I think that sometimes it could be helpful to catch up the whole idea of, let's say, an integrated campaign, but meaningless when you're explaining the concept for a banner, do you really need a 3 minutes video to explain a rich-media banner?
Then, the good folks at Escola Cuca (in Sao Paulo, Brazil) have released this nice video on this subject (the part of "try learning chinese" made me laugh)
