ABSTRACT : The objective of the work is to contribute to a reflection on the sources of information fordecision-making by managers andentrepreneurs.The information and knowledge society need a study on thechallenges facing managers and entrepreneurs in the 21st century. In recent years we have seen a majortransformation in the civilized world. Today are the knowledge and information that bind society andorganisations, having become the information itself in an industryAnd it is necessary to understand the importance of sources of information, since their innocence can becompared with Madame Curie’s innocence, when he manipulated uranium in her laboratory, unaware of thedangers to which he was exposed, eventually paying this scientific innocence with his own life. In the handlingof information sources and need to move from innocence to knowledge, so that managers / decision makers canhave a scientific understanding of the sources of information for decision making and that they can managethem.
KEYWORDS: Information, Knowledge, Sources of information; Weak and strong signals, Clues / Alerts.