Dropbox - Online Sync and File Sharing
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.
Syncthing - Syncthing replaces proprietary sync and cloud services with something open, trustworthy and...
Deluge - Deluge is a full-featured BitTorrent client for Linux, Unix and Windows.
Google Drive - Access and sync your files anywhere
FrostWire - Easy to use BitTorrent Client and YouTube Downloader in one, with built-in search and music library.