Anyone who has a Mac should try using the Screen Magnifying program in Universal Access control panel. You can zoom in and out with a keyboard shortcut and it's great for zooming in on online videos that don't offer full screen controls. I can't tell you how useful this tool is, you really need to check it out. It's not at all like the screen magnifier in Windows.

Question: Does anyone have knowledge or a comparable program that runs just as smoothly as the Mac OS X built-in magnifier that works on Windows? Please don't suggest the Ease of Access Magnifier (it's useless).