Remeber that offering Free items is a great way to draw people to your website or storefront. But that only works if everyone has to visit your website or storefront. If one hundred people download, then begin distributing themselves, there goes anything that looks like advertising. It may not even be that the person offering the freebie is looking to advertise their Poser or 3D stuff, they may be selling banner space on their website and generating revenue off ofa consistent volume of traffic on site. The internet economy is less and less about exchanging hard currency for a physical object, or even a digital object. Also, if you want your free items to persist and thrive after you die or leave the community, then YOU should be sure to put a clause about open distribution in your readme NOW. Then you won't worry about needing to remember to change it later. Best of luck in your search!