cdfax is a FAX-like CD-ROM transfer tool. cdfax is written in Ruby and tested under Linux.
flicp is for users who have a fli4l router in their LAN. With flicp you can upload and download any file you want. This is especially useful if you want to update your system.
Give allows users to quickly share files without the need to modify directory permissions or use world writeable temp spaces.
netrw is a simple (but powerful) tool for transporting data over the Internet. Its main purpose is to simplify and speed up file transfers to hosts without an FTP server. It can also be used for uploading data to some other user. It is something like one-way netcat (nc) with some nice features concerning data transfers. It can compute and check message digest (MD5, SHA-1, and some others) of all the data being transferred.