Description: Blockly is a free and open-source visual programming language and web-based integrated development environment. It allows users to drag blocks together to build programs visually, without needing to type code.
Type: software
Pricing: Open Source
Description: Mailman is an open source mailing list management system. It helps manage email discussion and announcement lists, allowing users to subscribe and unsubscribe, and helping admins moderate and post to the lists.
Type: software
Pricing: Free