The document summarizes the top 10 most popular torrent sites in 2015. KickassTorrents took the top spot, surpassing The Pirate Bay which was raided earlier in the year. Torrentz remained the second most popular as a meta-search engine. ExtraTorrent and YTS maintained their positions in the top 5. The Pirate Bay clones collectively took the fourth spot. The rest of the familiar names in the top 10 saw some shifting in their rankings from the previous year.