Net chat or IM facilities permit users to engage in dialogue over the Internet.

The google talk, Gaim, and gaim-OTR web browser plugins, are the only chat network that is free, with protocols are non-proprietary, open source software, that
runs on multiple OSs, with privacy, strong authentication, and deniability. This is the correct option for those who pursue open politics itself, as it is quite important to maintain the ability to add features or change networks, and it is less important to keep one's contact list private.

Trillian SecureIM over ICQ has similar user features, but it is proprietary closed source code and does not run on every OS. However it stores contact lists only locally on a host machine and so may be superior for business purposes.