I was interested to hear this week on BBC world program "click" from this week, that they gave out a warning on Wikipedia.com as "readers beware"
It appears to be that Microsoft found a lot of errors at the web site and offered to fix them up free (free, how interesting) anyway Microsoft were turned down,
I must say I had a dose of Wikipedia ignorance, it appears a few people I know and I have had four different examples over recent years, people do not know about gamma correction when their picture come out dark on their electronic camera, one person I knew just increased the brightness of the picture and then adjusted the colors until the picture look about right, when all he had to do would be to adjust the gamma correction by 2.