telnet client

Podcast Amp is a little quirky, and not all Podcasts listed Podcasting Client

WildVoice Studio makes it fund and easy to record and publish Podcasting Client

Nettalk is a powerful but easy to use free (open source) IRC-client for Windows.

Popcorn is a lightweight and portable e-mail client for Windows.

LDC++ is a client for Direct Connect network.

Advanced whois client with geo information

KueL-FTP is an easy to use, free FTP client program.

Azureus is a free Java based BitTorrent client

The ultimate employee time clock, job/phase tracking, email, client/server

Bulk Email Client for Sending Personalized Text or HTML Messages.