Trello<p><strong>Trello</strong> is Atlassian's visual work-management tool for boards, lists, cards, assignments, due dates, and team workflows. It supports productivity by making tasks and project status easy to organize, scan, and coordinate across teams.</p><p>Trello belongs under Productivity &amp; Collaboration Tools and Requirements, Agile &amp; Project Documentation Tools because it supports lightweight task tracking, project planning, and collaborative work management.</p><p><strong>Additional Resources</strong>:</p><ul><li><a href="https://www.atlassian.com/software/trello" target="_blank" rel="noopener">Atlassian Trello product page</a></li><li><a href="https://support.atlassian.com/trello/" target="_blank" rel="noopener">Trello support</a></li><li><a href="https://en.wikipedia.org/wiki/Trello" target="_blank" rel="noopener">Trello overview</a></li></ul>