Modelio - Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI.
TeenUp - A learning platform designed for teens by teens
Diagramo - Diagramo is an online flowchart software - diagrams (create, edit and share)
Alcamy - Free, open self-learning platform. Learn & teach anything.
ARIS Express - ARIS Express is based on the proven ARIS methodology and industry standards.
EduDo - EduDo is a video discussion platform