Shared directory
When a directory is shared through aMule, all of its contents (files in it) are available for other eD2k/kademlia clients to download them from you.
To share a directory in aMule, go to Preferences -> Directories and check the box by the directory you wish to share.
By default, sharing a directory does not share it's subdirectories (the directories inside that directory. In other words, child directories). If you want to share a directory recursively (that is, the files in a directory and all of its subdirectories), dobule-click on the folder icon by the directory name.
ATTENTION: Be very careful what directories you share or you could eventually make available to unknown clients/people your sensible data by mistake (passwords, addressbook, private stuff, etc).