VueChat Enterprise Server
VueChat is a set of business solutions, techniques and technologies that allow people to communicate and build modern and efficient relations with customers and partners all over the world. For home use, you may want to begin with VueChat Home which is the easiest way to start. ... With VueChat Home you may connect to every available VueChat Server registered in the VueChat Global Servers list and communicate with people all over the world live and make low cost telephone calls over the Internet.
http://www.vuechat.com/download/vuechat_srv.exe - 608Kb - Download - Screenshot

Annotate!Pro
Draw on top of any program running on your desktop. Communicate effectively with your colleagues. Annotate so your audience can effectively follow along with you.
http://www.annotatepro.com/files/Annotate!Pro-TRIAL.exe - 2Mb - Download - Screenshot

ServerTalk
ServerTalk is an application that allows you to communicate directly with an open TCP or UDP port on a machine. This can be very useful for low-level troubleshooting of server issues when using any of the clear-text based protocols such as FTP, Telnet, HTTP, etc. ... Also a great learning tool.
http://www.nighteffect.com/files/ServerTalk.exe - 124Kb - Download - Screenshot

Instan-t
Instan-t is a powerful instant messaging software that allows you to communicate with MSN, AOL, Yahoo! , ICQ and Instan-t IM networks. Some Instan-t unique features are: - Voice chat: communicate face to face with contacts on any IM network and see their facial expressions. ... Instan-t has other user friendly functions such as the possibility of switching skins on your user interface and of seeing which contacts have you in their contact lists. ... In addition, Instan-t has no advertising and contains no spyware.
http://inidownload.com/it/Download/Completo/ITsetup.exe - 6Mb - Download - Screenshot

Chilkat SSL COM Component
Chilkat SSL is a free COM component that makes it extremely easy to communicate securely over a TCP socket using either the SSLv3 or TLSv1 protocols. This component is designed to be used by C++ applications, and cannot be used from Visual Basic or ASP.
http://www.chilkatsoft.com/ChilkatSsl.exe - 977Kb - Download - Screenshot

Syndicon
Syndicon is a free of charge IM service based on Jabber. Our Syndicon Messenger offers anyone interested an account on our server (Syndicon. de) to send and retrieve messages and to communicate with users of other IM services freely via our gateways. ... One client for all your contacts!
http://www.syndicon.de/im_download/syndicon_setup.exe - 3Mb - Download - Screenshot

Picaboo
Picaboo is entirely new way to share digital pictures and connect with friends & family. Picaboo enables you to easily create stunning digital photo albums, share with total ease, and communicate with your "Picture Pals" in an exciting and interactive way.
http://install.picaboo.com/install/PicabooInstaller.exe - 301Kb - Download - Screenshot

Blowsearch Secured Messenger
With BSM, you can communicate with all of your buddies from AIM, Yahoo! Messenger, MSN Messenger, and ICQ with just one unified program. Everything you type in AIM, Yahoo! Messenger, MSN Messenger, or ICQ is easily readable by malicious computer hackers, your business competition, and anyone... Software which is freely available on the internet!
http://images.blowsearch.com/bsm/images/BSM_Install.exe - 4Mb - Download - Screenshot

Polymorphic Live!
The software allows users to communicate in real time through an IRC chat network, in a user friendly environment, whilstlistening to various underground dance music audio streams from around the world. An auto update feature is included to keep you up-to-date with future releases, and a list of... The party runs 24/7 so join NOW!
http://polymorphic.gho2t.com/downloads/Poly_Setup.exe - 956Kb - Download - Screenshot

Email Director
Email Director is an email application to help you stay in touch with your target audience. Email Director allows you to communicate with your clients and customers in a more convenient way and send personalized messages to your customers, subscribers and friends. ... Email Director will save hours of your valuable time, which can then be used for everything you need to do in your online marketing business.
http://www.omidsoft.com/download/setup.exe - 6Mb - Download - Screenshot