Thanks :) There is no catch and it's free to use. We have monetization strategies that we will implement in the future.
Cheers!
How do I create 'folders' on the site?
Just drag a file onto any page on the site, and a new folder is created (or click 'Upload' if you're using IE).
Monetization strategies such as...?
We have not solidified the direction to go yet but we have few ideas in mind, both traditional/proven business models in the space and some creative ones that may be bit risky.