A method includes, in a server residing in a network of interconnected computers, populating a repository with content, each one of the content categorized by at least one community designation, one topic designation, one tag and/or one company designation, receiving registration information for users, the registration information including a username and at least one community designation, one topic designation, one tag and/or one company designation, receiving content from a first user, the content including at least one community designation, one topic designation, one tag and/or one company designation, storing the received content in the repository, and notifying a subset of users of the received content, the community designation, topic designation, tag and/or company designation of each of the subset of users matching the community designation, topic designation, tag and/or company designation of received content.