Print yellow page directories face the most uncertain future of all media. We’re estimating that the yellow pages industry will lose $39% of its in annual revenue over the next five years, amounting to a loss of $5 billion in annual revenue by 2013. Meanwhile, there is a simultaneous increase in the industry’s “addressable market” of search engine advertising and local online video, giving publishers a larger cache of advertising products to sell. Video shows the most promise, growing from a $1.4 billion category this year to $7.6 billion in 2013.