Best Blackhat Forum

Hi. I always get hit with this type of sites in comments.

http://chooseautoinsuronline.com/
http://freeautoinsurancequotesfreeautoin...uotes.com/
http://carinsuranceratescarinsurancerates.com/
http://www.insurquotes4you.com/

- What script they use ? Any link please ?

Is it legit and allowed by cpa sites to have sites like this ? Entering zip code directly on site... how it really works this ?