ACCESSIBILITYThere is a text resize facility at the bottom right corner of the vast majority of screens.
Alternatively on most browsers CTRL and '+' (plus) sign zooms in.
More extensive facilities for computer wide settings are available in Windows using Magnifier. Instructions are slightly different depending on the browser and operating system - In Windows 7 you can access Manginfier any time by pressing the Windows key and '+' (plus), which is also the shortcut for zooming in. For Mac OS X Universal Access is In the 'System Preferences' window - click on the 'Universal Access' icon.