all the other upsets the author mentions were consumer product driven. Mainframe -> PC. PC -> Mobile. Advertisement is business driven. It doesn't seem to be ev

all the other upsets the author mentions were consumer product driven. Mainframe -> PC. PC -> Mobile. Advertisement is business driven. It doesn't seem to be even in the same league as the other upsets and search advertisement will likely upset by "Death of a thousand cuts" than some plucky upstart.