It occurred to me today that there's not actually that much discussion in the industry as to the frequency with which people make changes in their AdWords campaigns. That said, I've poached three questions from a circa 2003 WebmasterWorld post that's now closed, and hope you'll take time to answer below.
I. Bidding How often do you change bids for each keyword? Daily Every other day Weekly Bi-weekly Monthly Quarterly Other:please specify:
II. Optimization How often do you optimize? Daily Every other day Weekly Bi-Weekly Monthly Quarterly Other:please specify:
III. Creatives How often do you change the creatives for keywords? Daily Every Other Day Weekly Bi-weekly Monthly Quarterly Other:please specify: