The Web is a source for background information also, but use it with care! There are ways to limit your searches to particular types of organizations, such as professional associations, special interest groups, government and education.
In a Google search you can use your topic description and a shortcut to limit your searches to non-profit organizations by entering your topic keywords and "site:.org" For example:
substance abuse, counseling, site:.org
Government sites would be, "site:.gov"
Educational sites, "site:.edu"
You still need to investigate each Web site to ensure it comes from a reputable source and to recognize any biases the organization may have.