Wikipedia Plus is an browser extension for Mozilla Firefox to improve users access to information. While Wikipedia is a great source of information on many topics, Wikipedia has a problem in that its very popularity means it is a target for those with a large interest in concealing the truth. On some topics, pages are carefully monitored, and anything that doesn't tally with the 'official narrative' is removed. Hence the need for a tool to give users easy access to a wider spectrum of opinions.
http://WikipediaPlus.org (Requires Firefox v.3 or later)