The 2008/2009 economic crisis provided a sustainable impulse for improving environmental scanning systems (ESS).Although a rich body of knowledge exists, these concepts are not often used in practice. This article contributes a literaturereview addressing not only why this knowledge is not used, but what elements of it can be leveraged for the work on hand.The results are structured in terms of the elements of information system (IS) design theories and the research methodapplied. At the end, we derive six initial principles for reworked ESS that are more applicable than the state of the art. Theseprinciples should improve the "grasp" of weak signals and allow better incorporation of environmental scanning findings intothe executive decision-making process. Two instantiations helped us to highlight how current developments in IS contributeto successful design, implementation, and day-to-day operation of reworked ESS.