Demand/supply ratio. There were 289,000 searches for "fishing" last month, but sometimes you compete against the 35,000,000 results on a Google survey? "Bass fishing tips," with 3,700 searches, and 31,000 results is far more likely one who did that. 4) Negative Match - A specific keyword a person do n't want to display your ad (i.e. -free) An ad with -free a...
