BigChampagne
- http://www.bigchampagne.com
- Marketing research focused on file-sharing networks, with "TopSwaps" charts of most-popular musical tracks and artists.
Bitzi
- http://bitzi.com/
- Community-built media encyclopedia where file-sharing users identify and rate digital files, including images, music, movies, and software. Several P2P software provide an option to use this feature to check a file before downloading it.
PP International
- http://www.pp-international.net/
- A collective for the Pirate Party movement around the world. Offers news and a common resource for international collaboration, and can provide help to form a local party in a given country.
Slyck
- http://www.slyck.com/
- News site with regular articles and statistics on the state of major P2P networks.