The godfather of Google everything, Perry Marshall, sent me this vital information in his latest newsletter.

It tells you everything you need to know about improving your Adwords Campaign without taking a serious dip in performance during change-over:

After hundreds of Adwords account consultations, I've often seen that a guy can have an account that's a real mess, but it's still working, still profitable. Great improvements can and must be made, BUT must be done without screwing up what was...


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