BitTorrent has grown in popularity to become one of the most common protocols for transferring large files; by some estimates it accounts for almost 35% of all traffic on the entire Internet.
An even greater number of websites and internet forums exist solely to archive and share such links-these sites are often referred to as "link sites" or "indexing sites." This type of file distribution has grown to such a large volume that it has eclipsed the remaining P2P filesharing services.I had previously only been aware of P2P, as it is so often mentioned in news articles when discussing piracy, and Torrent Sites, as they are so often discussed in the hallowed halls of high school. While they are not all relevant to film piracy (e.g. Cracks/Serials Sites are used to eliminate the limit on the number of computers a software can be installed on, such as the Microsoft Suite), it is still fascinating to see the various methods people use in order to obtain certain goods.
Source:
Internet Piracy - SIIA: Software & Information Industry Association. (n.d.). Retrieved from http://www.siia.net/index.php?option=com_content&view=article&id=337&Itemid=350