http://mp3.about.com/od/filesharing/tp/Best_Free_P2P_Programs.htm

http://www.filehippo.com/software/p2p/

http://compnetworking.about.com/od/p2ppeertopeer/tp/p2pfilesharing.htm

http://en.wikipedia.org/wiki/File-sharing_program

http://www.bestsecuritytips.com/xfsection+article.articleid+49.htm

http://www.limewire.com/

http://www.zultrax.com/p2p/index.htm

http://filesharefreak.com/2008/01/02/a-list-of-p2p-file-sharing-programs/

http://www.npssoftware.com/freefilesharing/filesharing.htm

http://www.keepandshare.com/htm/free_file_sharing_programs.php

http://www.download3k.com/Network-tools/File-sharing/latest.html

http://www.iomx.com/download/file_sharing_p2p.htm