I have been thinking about allowing custom URL that links to uploaded file and decided not to allow that.
By custom URL I thik the URL that you can put to any website or give it to anyone so that he/she can download your file from other people's site. I don't want to allow that because it will make my site like any other "uploading files" websites.
Well my site is not just "upload and share files" website, it is something different.

How is it different?
At first, number of files is limited, so space on the server is limited - 1 000 000 000 bytes.
Secondly all files are categorised and displayed on the frontpage.
Furthermore I'm planning to advertise my site and hoping thatmy site will attract great attention and many visitors. That means many people will download and try/use your files, documents or whatever you upload and that could be very useful for you and your business.