"We're not commercial, really for the same reasons why libraries, national arts, and churches aren't," he said, suggesting that the goal with Wikipedia was to give every single person on the planet a free encyclopedia. In fact, he calls it, "a temple of the mind." And since we know that most minds cannot tolerate advertising agencies in their temples, Wales said that's why he spun off Wikia, to create the same kind of passionate, community-driven content as Wikipedia, but with advertising adjacencies as a source of revenues to support the whole proposition.
"When we started Wikia, we actually had some concerns about whether people would contribute in a meaningful way. And they do," he said.