 Nonetheless, there are still hundreds of millions of damaged views.Loc Vu-Quoc, professor for Mechanical and Aerospace Engineering at the University of Florida, stated in 2008 that "sometimes errors may go for years without being corrected as experts don't usually read Wikipedia articles in their own field to correct these errors".In August 2007, WikiScanner, a tool developed by Virgil Griffith of the California Institute of Technology, was released to match anonymous IP edits in the encyclopedia with an extensive database of addresses.