wpW5 - Wikipedia - who, what, when, where, why
The wpW5 application is the centrepiece of the wpW5tools project. wpW5 will eventually answer everything you want to know about an article: how did it get this way? who said the world is flat, when did they say that, did they discuss it first? All those questions will be answered. Also, how did this article get to the shape it's in: when were sections added, who made major contributions, is it vandalized/reverted a lot, is it constantly worked on or changed in bursts of activity?
This is an ambitious effort - for now wpW5 is at the "advanced proof-of-concept" stage. wpW5 Version 0.3 (PxC) lets me load the article diff history, retrieve individual prior pages from the history, and perform various searches for text that is or was in the article, in order to find out exactly when that piece of text first appeared, when is was last seen there, who put the text in and who took it out again.
If you are interested in trying out this software, send me an e-mail to get a copy. It only runs on Windows and is an .exe file that you install and run on your own system.
wpW5 v0.3 is described a little more completely here: