Notice to would-be vandals: you may not be aware that adding your URLs to other people's wiki pages no longer improves the Google ranking of the products you are promoting, so you are just wasting everybody's time - yours and that of the owner of this wiki.
For more information, see CaptchaTest.
Note: some pages are permanently locked, even though the message at the bottom of the screen refers to obtaining a password. These are mostly generated pages, e.g. Recent Changes.