If you are a marketer trying to decide whether the mobile ad market will be the place to be in the future (or even today) you have a virtual smorgasbord of numbers to back your claims to move or not move.
Thanks to eMarketer for aggregating these ‘predictions’. Note that these ‘research efforts’ can’t even agree on the same starting point for how much mobile ad spend was (as in already occurred and paid for) in 2008.
What do you take from this kind of disparity? What is your opinion on how big this market can be? It looks like your guess is as good as the next research firm’s.