Getting More Out of Each Click with "Post-Click Marketing"
WebMarketCentral
DECEMBER 8, 2008
Critics of these services refer to them as "spyware," though that term isn't really fair. The better services also use geo-location filtering to determine which city the visit came from, rather than providing only corporate headquarters information (e.g., They aren't so much "lead generation" as they are "lead extraction" services.
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