ShareZilla is a free to download BitTorrent client, the brother of LimeZilla and BitZilla. All three programs have a similar appearance and functionality, but each is tailored to a particular type of needs. Specifically, ShareZilla adapts to the needs of those who need fast downloads.
ShareZilla supports numerous peer to peer (P2P) networks like Gnutella, Gnutella 2, eDonkey and BitTorrent, which makes it an especially powerful program. The downloads and file searches are fast and more productive (in terms of movies, music, software, etc), but that doesn't mean that ShareZilla is more complicated to manage as a result. Conversely, ShareZilla is especially easy to use, and allows batch downloads.
As a complement, ShareZilla includes a media player so you can watch videos and listen to songs straight after downloading them. Finally, the search engine allows you to set various filters in ShareZilla, allowing you to fine tune all your downloads.