Wikipedia has to be one of the most widely checked resources on the internet but what happens if you don't have a connection to the net?
WikiTaxi is a useful little tool that allows you to do exactly that - download Wikipedia to your hard drive and consult it without even having to access the Internet. However there is a catch - you need a hell of a lot of spare drive space. Because Wikipedia is constantly growing, WikiTaxi uses compression to make sure that the database fits on an 8 GB memory stick - still pretty impressive.
On the plus side, Wikitaxi requires no installation. Just extract the WikiTaxi archive to any folder, and it's ready to go. The folder can be on a fixed hard drive, or a portable device like memory stick or flash card. WikiTaxi does also modify a small options *.ini file which it places right next to its own executable so it does modify your PC a little.
WikiTaxi is a brilliant innovation that makes reading Wikipedia without an internet connection a reality but it does require a lot of free disk space.