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My Ads run 100% of the time according to google (and my own personal test).
It just seems that not nearly as many people are searching the terms this year v. last year. Is it normal/possible that the majority of the people with the condition (medical) have already looked into it and that new sufferers simply can't supply the demand?
Does anyone have any insight here? I'm starting to just think maybe the idea has simply run its course (unfortunately).
I am going to assume that your keyword terms are broad match. Over the course of the last year, we have made some revisions to the way your broad match keywords are expanded to similar terms. We have become more 'strict' with what we consider similar and you have consequently seen a decrease in impressions.
I would recommend making use of the keyword tool to try and identify some potential keyword terms that could be added to your account. Not all of the suggested terms will be appropriate, but by adding some of the recommendations to your account as keywords, you may be able to regain some of the impressions you seem to have lost.
joined:Jan 30, 2004