Here's a good freeware software terminal emulator from Japan. It supports VT100 emulation, Telnet connections, serial port connections and more. There's also a Pocket Tera Term version available for Windows CE. (For Windows).
Here's an excellent, fully-featured sockets-enabled Telnet terminal program. Supports many protocols besides Telnet, such as SMTP and POP3. EasyTerm emulates a DEC VT100 terminal and supports ANSI colors. EasyTerm will log your entire session, supports clipboard transfers, and will print the current display. It also remembers up to 32 hosts and protocols. (For Windows).
Here's a solid freeware console telnet client for 32-bit Windows. Can be run in full-screen text mode (in a DOS session) or in a graphics windows. Supports ANSI colors. You can also redirect the telnet session to STDIN and STDOUT for use with other programs. Console Telnet will communicate the number of lines and line width to the host, and can operate in any console mode. (For Windows).