~TiddlyWiki is being used for all kinds of things:
* Many people are using the [[GTD ("Getting Things Done")|GTDTiddlyWiki]] ~TiddlyWiki variant for personal productivity
* There have been some interesting experiments in TiddlyWikiFiction
* Garrett Lisi has published his work on Deferential Geometry in a paper named [[An Exceptionally Simple Theory of Everything|http://deferentialgeometry.org]]
* Phil Hawksworth has used ~TiddlyWiki to create a flexible task management tool called [[TeamTasks|http://www.getteamtasks.com]]
* Paul Downey and Phil Hawksworth have created a note sharing tool called [[RippleRap|http://www.ripplerap.com]]
* An "electronic wallet" for storing passwords and other confidential information called [[TiddlyFolio|http://tiddlyfolio.tiddlyspot.com/]]
* [[Video tutorials interspersed with Q&A|http://files.unamesa.org/MORE/MORE.html]] by UnaMesa
* By teachers in Massachusetts to [[teach mathematics|http://luceatlux.net/mcasmath10/]]
* By schools in South Australia to [[distribute class materials to students|https://secure.ait.org/wiki/background.htm]]
* A [[music and culture site|http://udigrudi.net/]] (in Portugese)
* Jonny ~LeRoy has created a ~TiddlyWiki based on [[resizable windows|http://tiddlyhome.bidix.info/desk/]]
* Miguel Centellas has created an [[extensive guide to Bolivian politics|http://www.centellas.org/politics/politiddly.html]]
* BT is using a ~TiddlyWiki file for their [[Open source website|http://www.bt.com/opensource]]
* Elise Springer, a philospher at Wesleyan University in Connecticut, USA, is using ~TiddlyWiki for her [[homepage|http://espringer.web.wesleyan.edu/]] and for [[Reasoning Well|http://reasoningwell.tiddlyspot.com/]], a wiki for her Philosophy faculty
* The website of a [[body-building club in Paris|http://www.superphysique.net/]]
Also, see TiddlyWikiAdaptations