BearShare is a file sharing program that lets you, your friends, and everyone in the world share files. Built on Gnutella technology, it provides a simple, easy to use interface combined with a powerful connection and search engine that puts thousands of different files in easy reach. It is designed to let you share files with everyone on the Internet, and download files that other people are sharing. Works with all types of files, and lets you search for files that contain specific words or phrases.
More info:
hxxp://www.bearshare.com/