In our overture account we have about 3500 keywords, some of them of course get very litttle impressions but we have always be under the impression that since we were not paying for those non performing words best to leave them- Now with Google I am in the process of setting up the ad groups and when I do the estimate performance I get a lot of negatives in the click per day column. Do you recommend leaving those or do you get penailzed with Google for non performing ads?
You can leave them. Google penalizes by the keyword/phrase not by campaign. Also, the Google estimation tool is highly inaccurate!
Wow is it ever!!! Why do they even have it on there? How do they come up with these numbers? It's depressing fior the first timer becuase you are excited for your new campaign thinking it will do well becuase Google estimates position 1.1 so you start your campaign and lo and behold, you're stuck at 29.1! I dont ever look at the estimation thing anymore.