Opera, probably the best browser in the world — although the world doesn't realize it yet, has just added BitTorrent support. I think this is a good first step. I realize that BitTorrent has received a bum wrap because of all the music, movie and TV show downloads, but as a protocol is really quite powerful. Now when a site releases some software or a trailer goes up, if people were to use bittorrent, there won't necessarily be any server outages. :)