Dictionary
I had read it somewhere but had forgotten the key commands (which, by the way were not the same as those below ) In text edit, stickies and internet, those I know of so far, you can select a word and find the dictionary definition of it using a key command. 1. Select a word 2. keep the cursor over the word 3. Hold down the control key and click Up comes a menu with alot of cool options including a dictionary. This is an Apple feature and I have no idea if it works on anything other than a Mac.