Hisminky we don't sell mailing lists to 3rd parties. By marketing we mean so that we can learn what countries we may need to focus more attention to gain additional membership or even advertising renderosity in certain publications in certain regions of the world. As well as see how effective any marketing efforts are by analyzing new membership data after we have marketed Renderosity in a particular region. Furthermore, the "Special Offers" means special offers directly from Renderosity. Not from an unknown source.