Classified ads is internet communications program that works in distributed manner, requiring and supporting no concept of "server". Classified ads supports
For more information see http://katiska.org/classified-ads/. In order to use classified ads in meaningful manner, user needs to have the operated instance of this program to connect to some other program instance over some network. Classified ads tries to do that automatically but it may be necessary to ask for network address of node operated by a friend to get connected and started.
Classified ads is released under LGPL license.