Mac+Tips

Screen Zoom
Control - Scroll forward

Make your Mac Speak
To start, open the System Preferences panel under the Apple icon and click on speech. Select the Text to Speech tab, check the option "Speak selected text when the key is pressed," and click the Set Key option. Choose one modifier key - Command, Control, Option, or Shift - plus one other key of your choice, then click OK. Now each time you type this key combination, your Mac will read aloud any text you have selected. To stop the speech, type the same key combination again.

=Trackpad= 
 * Right Click (Control-Click) 2 fingers in the corners - set this in System Preferences
 * Browse in iPhoto - 2 fingers - left and right
 * Scroll vertically - 2 fingers up and down
 * Rotate pictures - 2 fingers - twist
 * Make larger or smaller - 2 fingers - pinch larger or smaller
 * Browse in Safari - 3 fingers - left or right
 * Desktop - 4 fingers up
 * Windows back - 4 fingers down
 * All windows - 4 fingers down - click on the one you want to bring to front
 * Open application switcher - 4 fingers left or right
 * Screen zoom - Control + 2 fingers
 * Set trackpad preferences - System preferences - Trackpad - set and turn off and on