Last week eMarketer announced its forecast that total online display advertising spend will surpass total search spend by 2015. Google is spending $390 million on an acquisition of display ad company Admeld. MediaMind, a rich media technology firm, was acquired for $414 million by an offline advertising technology firm focusing on television. If the 2000s was the decade of search, it certainly appears that the 2010s is heading toward the decade of display. Is this true -- and if so, what does all this mean for search marketers?