Originally Posted by Kyle_1973
Where do they come from? I don't mean the ones we individually prospect for, but all those agencies that sell them. How did they get them in the first place? Do they do mass surveys or something?
I would suspect they do surveys, phone calls, opt-in newsletters.
Writing press release's/articles to direct the person to a survey or there opt-in form...etc
I'm not 100% positive this is what they do.