The following software has proved useful:
ChoiceAnalyst – This Windows program enables you to combine the judgments of a group of decision-makers (e.g., a project team), assigning a different weight to each person and well as a different weight to each criterion, and roll up their choices into a scored ranking. It works extremely well. My descriptive post here, and here’s an interactive video demo.
thinklinkr – This is a sophisticated outliner that is a Web 2.0 app and thus platform-independent. It has excellent capabilities, and you can import and export outlines.