The brilliant TiddlyWiki was introduced a few years ago by Jeremy Ruston as an offline web notebook.
It became popular pretty fast and I never wondered why: The whole application consisted of a single, almost multi-platform and small web page file (html) filled with javascript code which had the ability to save data into itself. Users could create small bits of data (tiddlers) and link them together setting up a local personal hypertext notebook similar to a wiki. The best part was that other developers had the ability to write plug-ins which could easily be installed into the system and extend its functionality.
It became popular pretty fast and I never wondered why: The whole application consisted of a single, almost multi-platform and small web page file (html) filled with javascript code which had the ability to save data into itself. Users could create small bits of data (tiddlers) and link them together setting up a local personal hypertext notebook similar to a wiki. The best part was that other developers had the ability to write plug-ins which could easily be installed into the system and extend its functionality.
The open source nature of the application resulted to the creation of numerous plug-ins, giving special abilities to the original TiddlyWiki, which in turn, lead to new incarnations, designed for specific uses.
Though the most popular type of TiddlyWiki based systems is still task management and personal productivity there are also some wiki/note oriented systems.
The strong and -in the same time- weak point of those systems is that all data are stored in a single file. That means that you can easily upload Tiddlywiki to your server and update data from anywhere but if your data gets big there will be some performance issues. Fortunately the Tiddlywiki community developed a big number of plugins which will let you backup and archive your data to other files.
The following systems mainly include alterations of the original Tiddlywiki which can be used for managing information according to GTD.
1. GTD TiddlyWiki
Maybe the first GTD specific TiddlyWiki. It's simple, maybe faster than the original with a great style template. It's GTD capabilities are basic but it's still my favorite as a multi use tool.
By Nathan Bowers at http://nathanbowers.com/gtdtw
2. mGSD
An extremely GTD oriented solution, heavily customized for managing every aspect of the Getting things done methodology. There are plenty of pre-defined lists and dashboards covering every possible view to keep alive any GTD junky. It’s a MonkeyPirateTiddlyWiki derivative.
The latest version is simply irresistibly complicated and fast!
http://mgsd.tiddlyspot.com
Also available on line at http://www.tiddlyspot.com
3. d3 (d-cubed)
D-cubed is another pretty GTD solution based on GTD TiddlyWiki. It's functional, fast and has several plug-ins improving and automating the original GTD TiddlyWiki. Created by Tom Otvos. http://www.dcubed.ca
Also available on line at http://www.tiddlyspot.com
4. tbGTD
tbGTD is the most complete Tiddlywiki GTD system reviewed in this post. Users are able to create a big number of record types including reference items, contacts and contact groups. There is a nice and clean global dashboard where you can see your next actions and active projects. Plus: starring tiddlers are supported (a function I loved).
Available in tiddlyspot for off-line and on-line use. http://tbgtd.tiddlyspot.com