Wikipedia, a popular online encyclopedia that millions of people treat as an authoritative source of information, is systemically biased against conservative, religious, and other points of view, according to Larry Sanger, cofounder of the site.

Sanger, 57, who now heads the Knowledge Standards Foundation, said he believes that Wikipedia can be salvaged either by a renewed emphasis on free speech within the organization or by a grassroots campaign to make diverse viewpoints heard.