Last month, @zubaz sent out a Tweet about its new party van, asking followers for ideas about what should go inside. In response, I made a short video (quietly, because I was at my office) and Tweeted in reply. Zubaz in return re-Tweeted to its audience–voila, a free ad for them without appearing as much to their targeted audience. I guess my point is that I wish they would have at least sent me a free pair of baggy-crotched pants as a prize for my effort.