There are many website you can use to download .torrent files or access magnet links, the most well-known being The Pirate Bay. Others, such as Kickass torrents, exist, but they usually lack the ...

So I added a Hazel rule for ~/Downloads/ which will move any file where "Kind is BitTorrent Document" to my ~/Dropbox/Torrents/ folder. I repeated this on both my iMac and my MacBook Pro.