The advent of blended search in 2007 forced SEOs to rapidly reevaluate their strategies. Blended search, which incorporates video, images, news and other result categories into general Web search results, meant that along with keyword-rich content, engagement objects represented an additional opportunity for SERP real estate. Another potential game changer, semantic search has been buzzed about for a long time already, and with big boy Google beginning to implement some semantic technology , it looks like semantic search could be making its move to the mainstream

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SEO Strategy for Semantic Search