Freeplane began as a fork of the Freemind project. While maintaining comparability with Freemind file format, it has far outpaced in features and development. As of 3/5/2022, the latest Freeplane update (1.9.3) is 3/5/2022 vs Freemind was last updated (1.0.1) 2/5/2016. Active, helpful community.
Bucketlist.org - Log and catalog all the stuff you want to accomplish before you expire.
Xmind - Xmind is a brainstorming and mind mapping application.
List Challenges - Earn points for your life experiences. Find lists that interest you, and mark off what you've done.
FreeMind - FreeMind is a premier free mind-mapping software written in Java.
Life Listr - ***AS FEATURED BY APPLE***
vym - VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts.