This is an experiment in using graph theory as a learning tool for Chinese. Rather than treating vocabulary as a flat list, phrases are treated as vertices of a graph. Phrases are connected if they have a common character, meaning, or some other association that helps me remember them.
Here is a random selection of 5 Chinese phrases:
And here is a graph which shows the connections between them, and other closely-related characters:
or you can see a list of every phrase.