Pretty simple really. You goto do your research on the internet. Along comes a website that promises you exactly what your looking for. All you have to do to get started is to fill out the form. Whammo they gotcha!
You just became a lead. Now the lead company (yes lead companies develop websites looking like a mortgage company) will sell your information to others. Even companies such as Countrywide use this practice of getting leads. So think about it. Your information gets sold to multiple mortgage companies, brokers, other lead companies and anyone else who will pay for it. No wonder you get slammed with calls. Can you prevent this sure.
Check out my website that is designed to help homeowners or those doing mortgage research. www.thecrazybroker.com