XQual provides XStudio, a free test management application that handles the lifecycle of QA/testing projects: users, requirements, specifications, SUTs, tests, tesplans, test reports, campaigns and defects.
Official site of a software test management method. Description of the method as well as presentations of books about the topic, events, downloads and exemplary cases.
This tool is a fully web-based defect tracking and support ticket system that manages issues and bugs, customer requirements, test cases, and allows team members to share documents. [Commercial, trial version]