Display Lead Capture Spyware Traffic 
WebMarketCentral
DECEMBER 8, 2008
Critics of these services refer to them as "spyware," though that term isn't really fair. Demandbase is a simple, elegant lead enhancement solution with an affordable starting point at under $200 per month. These services don't collect any information beyond what Google Analytics , WebTrends or other web analytics packages do.
WebMarketCentral
DECEMBER 18, 2008
Leaving your content open may actually produce more leads in the long run, but you have no way to measure that with any precision (or even know for sure if that's the case). Although the term "spyware" is unfair, these services still make some marketers uncomfortable as they are collecting information without the specific consent of visitors.
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