HEATKEYS

draw.io is a free online diagram drawing application for workflow, BPM, org charts, UML, ER, network diagrams

Draw, share and collaborate on online diagrams. Easy web flow chart, network diagram, mockup, wireframe, UML diagrams like Class, Sequence, & data flow and process flow diagrams. Creately - free web-based software for online diagram software

Online diagram software. Create and share flowcharts, network diagrams, floorplans, user interface designs and other drawings online with the Gliffy diagram editor.

SimpleDiagrams is a desktop tool that helps you create simple diagrams quickly.

Edraw is a powerful yet easy-to-use program for creating flowcharts, organizational charts, network diagrams, business presentations, building plans, mind mapping and lots more.

Online diagram and flowchart software. Create diagrams and drawings such as flowcharts, mind maps, network diagrams, UML diagrams, wireframes, user interface designs and other drawings online with LucidChart.

Tuts+ teaches creative and technical skills across many topics to millions of people worldwide. We offer tutorials, articles, news and insights that help you take your knowledge to the next level.

Free software development magazine: Software Testing, Project Management, Requirements Programming (Java, .NET, Ruby on Rails, Ajax), UML, Agile (eXtreme Programming,Scrum, Test Driven development)

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Online Lighting Diagram Creator for photographers

Diagram Studio is a tool for creating flowcharts, business and technical diagrams. Draw objects, various shapes and link them together. The program features user-controlled points of connection, color shadows, graphics import and export, curves.

Quora is a continually improving collection of questions and answers created, edited, and organized by everyone who uses it.