Responsinator
Enter a URL and see how it looks in different widths. Simulates iPhones and Android devices in portrait and landscape. Could be useful for testing responsive projects.
Adapt Learning
Open source tool for creating responsive HTML5 elearning. SCORM compliant.
Fix - Firefox compatibility & Smart Shape b... |Adobe Community
How to fix the bug with smart shape buttons in responsive Captivate projects (slides with smart shape buttons appear blank in Firefox).
iPhone 6 Screens Demystified
iPhone screen sizes (points and pixels)
Most popular smartphone screen resolutions 2015
Resolutions for smartphones in the US and other countries