A few months ago, I placed a tiny, invisible image on my blog in exchange for "product samples." A few weeks later, I got a bucket with a shirt, chocolate drinks, other assorted merchandize, and a link to "Raging Cow," a blog "written by a cow" that just happens to have the name and image of a new chocolate drink product. The blog itself has various "humorous" rants that make no sense whatsoever and never explicitly mention the product the blog is advertizing. The only hint that this is a actually an experimental guerilla marketing technique is a tiny link in the corder that sats "©2003 Dr Pepper/Seven Up, Inc." Will it work? I have my doubts, but their crawler will probably notice this link and send me more merchandize, so I’ll be a good corporate tool and keep on blogging about it. You can sign up here, but your blog has to get 50+ hits a day to qualify.