IT professionals evaluating software products and tools for intranets and extranets can turn to a new Web service that provides comparative information on these systems. Compariscope from Intraware Inc. applies a user-defined, weighted scale of product characteristics to evaluate software products in 45 market segments from electronic commerce to decision support to project management. Each intranet or extranet application is evaluated using category specific features and benefits, and a vendor "track record" details length of time in business, company size, positioning, and strategic partnerships. Up to 90 different criteria can be compared for any particular application.