About: Norlyn Opinaldo

Following are free presentation websites and tools to enhance virtual classroom.

Identify the root causes of an event using the fault tree analysis technique.

Get to know what a Five forces analysis is, and learn how you can make a diagram out of it.

Get to know some of the best gantt chart makers here.

Here are graphical tools to assist you in drawing ER diagrams for your database.

Learn the definition and uses of block diagram by reading through this article.

Pick your preferred diagram maker from the list here.

Choose the best from these online teaching tools.

Following is a collection of free code editors for programmers and web developers.