The Photomaniac Media Library is a media management solution for digital photographers who have to manage large amounts of digital media. Its strength is its native support for RAW images, version control, team functionality, speed, cross-platform compatibility, and cost efficiency.
aria2 is a utility for downloading files. The supported protocols are HTTP(S), FTP, BitTorrent, and Metalink. It has a powerful segmented downloading ability, downloading a file from multiple sources and multiple protocols and utilizing your download bandwidth to the maximum. It supports downloading a file from HTTP(S)/FTP and BitTorrent at the same time, while the data downloaded from HTTP(S)/FTP is uploaded to the BitTorrent swarm. Using Metalink's chunk checksums, aria2 automatically validates chunks of data while downloading a file like BitTorrent.
GSTorrent is a Bittorrent client/server system. A daemon program handles all the file transfers as a Bittorrent client. The GSTorrent daemon also acts as a server for an external GUI client. The objective is to have a relatively small Bittorrent client, which runs on a small computer without a graphical interface and to control this server from a different machine. An example of this type of architecture is the mldonkey client/server system for the edonkey protocol.
QP2M is an Peer2Mail application, which means that it lets you share, store, and manage your files via email accounts. It work similar to other Peer2Mail applications, but it makes upload and download very simple, and has some unique features. You can upload and download multiple files simultaneously, manage your email accounts, and resume transfers after closing the application.
Tahoe-LAFS (Least Authority File System) is a decentralized data store. It distributes your filesystem across multiple servers, and even if some of the servers fail or are taken over by an attacker, the entire filesystem continues to work correctly and to preserve your privacy and security.
Lince is a light and full featured BitTorrent client. The graphic interface has been designed to resemble the old Azureus, and is simple but powerful and gives the user all of the information in an easy and intuitive way. It is configurable and efficient, using as few resources as necessary.