Consider a Source's Publishing Bias
As you evaluate a source, consider its publisher. The person, organization, government agency, or corporation that prints or electronically distributes a source plays an important role in shaping its content. Like authors, publishers usually have a bias about a particular topic or issue.
A corporate publisher, such as Microsoft, which publishes information on one of the largest sites on the World Wide Web, presents its products and services more favorably than those of its competitors. Similarly, political organizations, such as the Democratic Party or the National Rifle Association, publish sources that contain information in support of policies favored by their respective organization.
Information gathered from Web sites and periodicals is the kind most likely to reflect a publisher's bias.