Wal-Mart, CIA, ExxonMobil Changed Wikipedia Entries

A new Web site built by an American technology student has uncovered the lengths that companies apparently go to improve their public image by tweaking their entries on Wikipedia, the online encyclopedia that — famously — "anyone can edit."
ExxonMobil, the U.S. oil giant, made sweeping changes to an entry on the Exxon Valdez oil spill of 1989.
Meanwhile, his efforts so far have also uncovered amendments made from computers linked to the CIA, which were used to edit entries including the biographies of the former U.S. presidents Ronald Reagan and Richard Nixon.
Individuals using computers registered to the Vatican have amended entries on Roman Catholic saints and Gerry Adams, the leader of Sinn Fein.
A computer linked to the Church of Scientology's network was used to delete references to links between it and a group dubbed the "Cult Awareness Network."
A user of a BBC computer, meanwhile, edited George W. Bush's middle name from "Walker" to "Wanker."