File Sharing

BigChampagne - Marketing research focused on file-sharing networks, with "TopSwaps" charts of most-popular musical tracks and artists.
www.bigchampagne.com

Bitzi - Community-built media encyclopedia where file-sharing users identify and rate digital files, including images, music, movies, and software. Several P2P software provide an option to use this feature to check a file before downloading it.
bitzi.com/

Bluetack - A file sharing security solutions portal housing Protowall and Blocklist Manager.
www.bluetack.co.uk/

File Share Freak - Provides general information, tips, and tutorials on file sharing.
filesharefreak.com/

File Sharing Talk - Provides information, guides and forums.
www.filesharingtalk.com/

FileSharingz.com - Provides news, tutorials, detailed guides for each network, client downloads and a community forum.
www.filesharingz.com/

The Foundation for P2P Alternatives - Studies the impact of peer to peer technology and thought on society and aims to be a pluralist network to document, research, and promote peer to peer alternatives.
www.p2pfoundation.net/

P2P Blog - Blog covering the business, technology and culture of peer to peer. By Janko Roettgers.
www.p2p-blog.com/

PP International - A collective for the Pirate Party movement around the world. Offers news and a common resource for international collaboration, and can provide help to form a local party in a given country.
www.pp-international.net/

P2Pnet - Covers news which are relevant to peer-to-peer file sharing.
www.p2pnet.net/

Slyck - News site with regular articles and statistics on the state of major P2P networks.
www.slyck.com/

Wikipedia: File Sharing - Encyclopedia article covering concepts and issues related to the practice of making files available for download over the Internet and smaller networks.
en.wikipedia.org/wiki/File_sharing

Zeropaid.com - File-sharing portal featuring news, content, downloads, interviews and reviews for P2P clients.
www.zeropaid.com/