A personal knowledge base, an experimental project under development.

Wandora is a general purpose information extraction, management and publishing application based on Topic Maps and Java.

The open source tools for building, maintaining and deploying Topic Maps-based applications.

lite-net as a web app with authentication and privacy; simplest-possible note taking app for network and non-linear thinking.

The aiotopicdb package is an asynchronous implementation of TopicDB with an accompanying FastAPI-based API

WordNet is a large lexical database for English. WordNet has been developed at the Cognitive Science Laboratory of Princeton University. Topic map conversion is based on W3C's work on RDF version of WordNet 2.0.

Query topic maps with Ontopia.

List of countries

Topic Maps backend in PHP – see TopicCards for the UI

Tolog Document Retrieval with Ontopia.

tinyTiM - A tiny Topic Maps engine

A new RDBMS connector for Ontopia, based on JDO

A topic map sampler of realDonaldTrump tweets extracted using Wandora application.

An alternate, d3 based user interface for dm4 to present and filter work done in collaboration and Topicmaps.

TMAPI.Net is a collection of programming interfaces to access data hold in a topic map based on TMAPI 2.0 (http://www.tmapi.org).