http://searchengineland.com/10-big-changes-search-20-years-covering-246421
Search Engine Land founding editor Danny Sullivan looks at how search has changed over the two decades he’s been writing about it.
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http://searchengineland.com/10-big-changes-search-20-years-covering-246421
Search Engine Land founding editor Danny Sullivan looks at how search has changed over the two decades he’s been writing about it.