Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.
Udemy - Online Courses - Learn Anything, On Your Schedule
Meazure - What are the dimensions of that image? How big is this window?
Adobe Captivate Prime LMS - Adobe Captivate Prime LMS is easy to setup and helps in delivering engaging learning experiences in a personalized manner across devices.
On-Screen Ruler - lightweight, free, semi-transparent ruler
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!