Negative Keywords : A Primer
Negatives are important because they eliminate unqualified traffic from seeing and possibly clicking on your ads which in turn helps you cut down on wasted spend. I remember one client who was selling an air purification product that - I can't remember the exact brand name - but the model name/number included something like 15-X. When I first started managing the account, which had been running for quite some time, I noticed that this ad group had a huge number