I'm a seller of stock and ala carte 3D content for games and interactive media on marketplaces like Sketchfab and the Unity Asset Store. Like most asset publishers and vendors, I struggle to promote my 3D products for sale because of the vast number of markets and niches they serve.
We can sell the same items on multiple sites, but setting up shop is often too time consuming, and our customers miss what they're looking for when we spread ourselves too thin. That's why I started building Interconnect3D.com, not to compete with any 3D marketplace, but to enable 3D content creators like me to promote our work, and for our customers to search our offerings, on multiple sites at once.