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"Motivated Traffic"?
"Eager Beavers"?
I tried the cool backwards dictionary that I'm afraid I can't link to here. No luck. But yeah, that's right, a backwards dictionary. Let me know if I can post that here and I will. Pretty cool.
"Targeted visitors" is what some online systems use as well. That usually means the ad is put front of specific demo (age, region, gender) in a specific context.