This site functions as primarily a personal dropbox. Anything you upload here is stored on my AW3 server. It is as secure as any third party but probably faster.
You can check 'wiki' on the nav bar below to [+] an assets folder. Use the text field to name the folder as you would on a desktop. This folder is hidden to anyone who doesn't know it by name. If you want me to access the files you should let me know how to find it.
Attribution is automatic under a CC-BY-SA 4.0 license but unless you know the name of the assets you're looking for you are not likely to discover them.