It has been designed to be easy to take in to use. Current version allows posting and reading public messages, group-messaging, private messages between operators, search, voip calls between nodes and optionally publishing details about operators. UI is extensible using TCL language, a shared calendar app is included in TCL examples. Networking architecture is distributed, so there is no requirement for servers that would fail or organization running servers that would cease to exist. Distributed design contributes to high-availability. In classified ads users themselves are in control regarding ownership and usage of their data. Data security in classified ads means in addition to high availability also ability to identify frequent contacts by cryptographic means and keep transmitted messages and material safe from unintended parties.