Mail client which aims at being “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”.
Mail client with tons of features, customization chances, support for IMAP, POP3, multiple storage formats.
MUA written in Ruby; specifically developed for accounts with “a lot of emails”; nice thread-based presentation.
“Advanced and well-established feature-rich text mode web browser”; started as a fork of Links; it supports background download with queueing, some support from CSS, text box editing in external text editor.
A text-based web browser as well as a pager like `less`; it can be used as a text formatting tool which typesets HTML into plain text.
IM program supporting many protocols, including Yahoo!, AIM, IRC, or WLM; comes with the `Pidgin` project.