Below are two installations of the 'folder list' module. As you can see, there are links to the documents within two separate folders. You can add this module to any page. You can set the module to display links to any folder you choose. You manage the folders and files in the folder with a simple file management tool which helps you upload the files you want to share.

To the right is a 'tag cloud'. Each of the words is automatically generated when you add text to your site. The site search engine rebuilds the least automatically, and links each word to the search results page. You can set the module to display any number of words.