BitComet is a BitTorrent/HTTP/FTP download management software, which is powerful, fast, very easy-to-use, and completely FREE. It contains many advanced features that can accelerate your downloading up to 5 - 10 times faster, or even more.

Official eMule Site. Downloads, Help, Docu, News, ...

FrostWire is a high quality and totally FREE LimeWire PRO alternative. A file sharing p2p (peer-to-peer) program for Windows, Mac OSX and Linux. Absolutely NO spyware, NO adware, NO DRM content filtering or commercial nags. Just pure choice. You can search, download, and share all files, including MP3, OGG, WMA, WAV, MPG, MPEG, MOV, AVI and more. Incredible graphics, high performance and ease of use make FrostWire one of the world's fastest, full-featured, universal p2p file sharing program.

LimeWire is a free file sharing Gnutella client for Windows, Mac, OSX, Linux. You can search, download, and share all files, including MP3,OGG,WMA,WMF,WAV,MPG,MPEG,MOV,AVI,ASF,JPG,GIF,RM,HTM,HTML,TXT,SWF and more. Incredible graphics, high performance, and ease of use make LimeWire the world's most sophisticated peer to peer file sharing program.

Shareaza is a universal peer-to-peer (P2P) client for Windows, free of spyware or bundled products. It's feature-rich and won't cost you a single penny.