Last Saturday, the 8th of December, Internet Watch Foundation placed Wikipedia on a watchlist because Wikipedia use image of the cover album of German rock band, Scorpions’s 1976 Album which features the picture of a nude young girl.
Most UK ISP tends to filter contents Internet Watch Foundation put on their watch list hence that particular Wikipedia entry was filtered in UK, this also forced the rest of Wikipedia trough proxy server, making the site very slow.
The result of blacklisting Wikipedia seem to have backfired on Internet Watch Foundation because their action resulted in the image being distributed. When Internet Watch Foundation removed Wikipedia from its blacklist three days later, it cited the fact that its action seem to have resulted in promoting the image, a spokes person also said “in light of the length of time the image has existed and its wide availability, the decision has been taken to remove the webpage from our list.”