Complex sentence: Referred to as the digital divide, issues of economic and user-level access and connectivity are recurring issues in "digital rhetoric" discussions particularly when access means access to information, access to a reading public, and access to means of communicating.
Split into simpler sentences: Referred to as the digital divide, issues of economic access and user-level access are recurring issues in digital rhetoric. Access can refer to inequality in the access of information, access to a reading public, and access to means of communicating.