What SEMs Can Learn From Google AdWords Tests & Changes

If you work in paid search, you know one basic truth: you must always be testing. And that testing includes your test keywords and ad copy.


Search engines, especially Google, must always test too.


Since early this year, Google appears to be pu...

Source: http://feedproxy.google.com/~r/sewblog/~3/sWiIfmQFitQ/What-SEMs-Can-Learn-From-Google-AdWords-Tests-Changes

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