Finch is a console-based IM program that lets you sign on to AIM, Jabber, MSN, Yahoo!, and other IM networks. It runs on Unixes. It uses GLib and ncurses.
The program has been in service on UNIX systems since 1991 and is a popular alternative to the standard FTP program, /usr/bin/ftp. NcFTP offers many ease-of-use and performance enhancements over the stock ftp client, and runs on a wide variety of UNIX platforms as well as operating systems such Microsoft Windows and Apple Mac OS X.
Lynx is a fully-featured World Wide Web (WWW) client for users running cursor-addressable, character-cell display devices (e.g., vt100 terminals, vt100 emulators running on PCs or Macs, or any other character-cell display). It will display Hypertext Markup Language (HTML) documents containing links to files on the local system, as well as files on remote systems running http, gopher, ftp, wais, nntp, finger, or cso/ph/qi servers, and services accessible via logins to telnet, tn3270 or rlogin accounts (see URL Schemes Supported by Lynx). Current versions of Lynx run on Unix, VMS, Windows3.x/9x/NT and later, 386DOS and OS/2 EMX.
WeeChat is a fast, light and extensible IRC chat client. It runs on many platforms like Linux, Unix, BSD, GNU Hurd, Mac OS X and Windows (Bash/Ubuntu and Cygwin).
Alpine is a fast, easy to use email client that is suitable for both the inexperienced email user as well as for the most demanding of power users. Alpine is based on the Pine® Message System, which was also developed at the University of Washington. Alpine can be learned by exploration and the use of context-sensitive help. The user experience is highly customizable through the use of the Alpine Setup command.
ELinks is an advanced and well-established feature-rich text mode web (HTTP/FTP/..) browser. ELinks can render both frames and tables, is highly customizable and can be extended via Lua or Guile scripts. It is quite portable and runs on a variety of platforms.