I already cannot get certain brands of milk at my local grocery store due to distribution agreements that in some ways resemble the distribution agreements that surround digital media.<p>I actually have had to visit 3 different major grocery stores to get the ingredients for one meal.<p>As for the advertisement? Well there are the ones on my receipt, the &quot;coupon&quot; that pops out, and possibly ads plastered on the side of the product I just purchased.