Limewire

LimeWire is a practical and user friendly peer to peer client that uses the Gnutellanetwork to share all types of content, like music, photos, videos, documents and programs.
It also allows downloading using torrents, and interestingly private sharing between specific users.

Limewire's standout feature is its ease of use. When opened it automatically connects to the servers.

You can search for content immediately, and perform two or more searches at the same time.

You can filter search results by type - audio, video, music, pictures, documents and programs. You can also sort results by relevance, title, size, length, year and quality.

For video and music, you can also exclude or include copyrighted material.

If you find what you're looking for, simply click to download - and you can see the progress here. While downloading, you can also preview your files.

The latest version of Limewire has introduced the ability to share directly with your friends, in Gmail, Jabber or LiveJournal. This makes Limewire a great way to share files privately.