FileZilla is a cross-platform graphical FTP, FTPS and SFTP client a lot of features, supporting Windows, Linux, Mac OS X and more. FileZilla Server is a reliable FTP server for Windows.
Wireshark is a powerful network protocol analyzer developed by an international team of networking experts. It runs on UNIX, OS X and Windows. (Looking for Ethereal? You're in the right place. We switched names in May 2006 due to trademark issues.)
StarDict is a Cross-Platform and international dictionary written in Gtk2. It has powerful features such as "Glob-style pattern matching", "Scan seletion word", "Fuzzy search", "Net dict", "Full text translation" etc.
xine is a free multimedia player. It plays back CDs, DVDs, and VCDs. It also decodes multimedia files like AVI, MOV, WMV, and MP3 from local disk drives, and displays multimedia streamed over the Internet.
FreePOPs is a webmail to pop3 conversion daemon. It is extensible to support other webmail using the scripting language LUA. See the homepage for supported webmails.
NAS (Network Attached Storage) server supporting: UPS, CIFS/SMB, FTP, NFS, RSYNC, SSH, AFP, Unison, UPnP, Webserver, iSCSI protocols, local and MS AD authentication, SoftRAID (JBOD,0,1,5), disk encryption, S.M.A.R.T, WebGUI. Requires only 64MB on DOM.