EDIT: The updated Linking Policy is currently in review and, unfortunately, will not be live on the site until that is completed. We apologize for announcing a change that is not ready to be viewed on the site. If you have any questions, please leave a comment.
Not very long ago, we announced that we had completely updated the EERE Linking Policy—the policy that explains which external Web sites you should link to from EERE Web sites, and in what context.
Due to the feedback that we've received, we've clarified the policy, especially the parts that explain what sort of for-profit Web sites may be appropriate to link to in specific situations.
The most important thing to remember, of course, is that EERE is not a link repository to external Web sites, no matter how valuable they may be. EERE should only link to external Web sites when they have information that supports the content we're writing. So, instead of having links for the sake of links, we should have links that support and enrich our actual content.
Of course, EERE's linking policy is just a guideline, and the U.S. Department of Energy's linking policy should always take precedence if there is ever any question about how to handle an external link.