Primary sources are sources created by an organization. Most organizations have some kind of a web presence - some individuals do as well. Use a variety of search engines to identify organizational or personal web sites, blogs, etc. Keep in mind that most organizations will have a 'public' web site and a 'private' web site (such as a password-protected intranet or internal web site) so you may or may not be able to find out much this way.
What kind of documents are you after? You want to think like an investigative journalist in order to answer the 5Ws (Who, What, Where, When, Why), as well as How, as it relates to your organization.
Where can you find these sources? Try the following Brock University Library Databases: