Abstract: The method and computer implemented system for social decision making is disclosed. The method commences with a decision maker working interactively with a computer system via the Internet. Decision maker identifies a topic for discussion and the initial pros and cons factors pertinent to a topic; each pro and con factor is attributed by a set of values and criteria. Decision maker then uses a set of social collaboration tools to gather opinions of the others. The others agree or disagree with a set of values and criteria attributed to initial cons and pros. The others can also submit their opinions in a form of the pros and cons pertinent to a topic each attributed by a set of values and criteria. The data is being stored in a machine readable format on a facilitator's server. A computing algorithm then calculates the sets of values, prioritizes criteria, and analyzes the data.