7) ABC The popular BitTorrent has inspired a lot of clients, and this is yet another, as its developers point out. To help stand out in a crowded pack, ABC has plenty of bells and whistles, including a customizable queue system, support for advanced settings from BitTornado, and the ability to manually add torrents from both file and URL. OS: Windows.
8) Freenet Perhaps the most philosophically high-minded open source file sharing project, Freenet is committed to freedom of speech. Its built with the goal of preventing all censorship or government control of information tranfer. Right on, brother, now where can I download the newest Lindsay Lohan? OS: Windows, Linux, Mac.
9) MLDonkey At one time this multi-network client (it runs on eDonkey, Overnet, BitTorrent, Kad and others) was Linux only. Since then it has opened its arms to offer a Mac and Windows client. There are a lot of variations of this program.
10) Kceasy This popular file sharing app is considered easy to use (although in truth most file sharing programs are pretty simple). Its coded for the Windows OS, but theres a similar apps for KDE, Apollon, and for Mac, Poisoned.
Next page: related open source software