Unlimited uploads are coming soon, free of charge.
Sketchfab, a popular interactive, online model viewer, is planning to allow unlimited model uploads for free accounts in the near future. The current cap is set at 10 uploads, but once they reach 20,000 users, the cap will be lifted. They've also informed us that they will be releasing a material editor in the near future, allowing you to fine tune your materials, all in real time in the Sketchfab viewer. This is a better time than ever to check out their services and take your model presentation to the next level.
Read more details here: http://blog.sketchfab.com/free-unlimited-uploads-coming-soon