I am still shocked at the number of outdoor and print ads (and to a lesser extent tv spots) that are not repurposed and made avilable online. Seeing things in "meatspace" and later looking for them online is not behavior exclusive to people with professional interests in advertising and graphic design. People do it all the time. It is such a waste considering how cheap it is to give brand communications life beyond their non-digital origins.
Havaianas beutifully designed site is an example of how to do it right.
My post on the Snickers' word campaign is an example of how to do it wrong.