If you have recently moved from Windows to Mac, especially if you just got a MacBook Neo, you might be missing the Home, End, Page Up, and Page Down keys. Well look no further than this handy dandy table:

Key (Windows)	Key (Mac)	Description
Home	Command ⌘ + Left Arrow	Moves to the beginning of a line of text in Word, for example.
End	Command ⌘ + Right Arrow	Moves to the end of a line of text in the address bar of a browser, for example.
Ctrl + Right Arrow	Option ⌥ + Right Arrow	Moves the cursor to the end of the next word.
Ctrl + Left Arrow	Option ⌥ + Left Arrow	Moves the cursor to the end of the next word.
Page Up	Option ⌥ + Up Arrow	Scrolls up about a page.
Page Down	Option ⌥ + Down Arrow	Scrolls down about a page.