So who is responsible for the success of the 10-part serial? The series features a hapless, angry, cuckolded, mad-Photoshop-skillz-enabled narrator named Donnie Hoyle and does three things amazingly well: it gives a terrific overview of some key Photoshop techniques; it has an oddly compelling narrative; and it's wildly funny. It started in December 2007 and ended earlier this month when Donnie suddenly disappeared. Some eight million page views and two Webby Award 2008 nominations (Best Comedy and Best How-To Series) after it launched, a mystery remains: Who is Donnie Hoyle?