Free software replacement for Skype
The Chinese government, for example, was found to have been spying on Skype conversations already, and they are probably not the only ones. We do not want to encourage the creation of a Skype compatible client, but instead, we want to encourage you to create, contribute to, or promote the use of free software replacements for Skype, such as Ekiga, and to encourage adoption and use of free VoIP, video, and chat protocols such as SIP and XMPP/Jingle.
Not a developer? There's still a lot you can do. Using one of the free software Skype replacements listed above is a great start. You can also help by contributing to the documentation and tutorials for such projects, as well as filing feature and bug requests.
Everyone can track progress and stay up to date with replacements for Skype on the LibrePlanet wiki.