Certain software can enable the user to gain ready access to Wikipedia and its contents.
Macintosh
Huevos[?] (A free open source hot-key activated program for Mac OS X which offers programmability within the application in adding search engines) Huevos Hompage (http://ranchero.com/huevos/) Add the following string into the program's preferences to allow searches of Wikipedia: http://www.wikipedia.org/w/wiki.phtml?search=%@