http://tags.library.upenn.edu/tag/fortune500_blogs PennTags Feed http://tags.library.upenn.edu/makerecord/url/2242 http://tags.library.upenn.edu/makerecord/url/2242 This is a directory of Fortune 500 companies that have business blogs, defined as: <strong>active public blogs by company employees about the company and/or its products.</strong>