Apple has released the iMac Wi-Fi Update 1.0, which is recommended for all iMacs released since late 2009 that are running Mac OS X 10.7.3. The update resolves an issue that can prevent an iMac from automatically connecting to a known Wi-Fi network after waking from sleep. It’s available for direct download, but it’s easier to get through Software Update, where it will appear only if it’s necessary for your iMac. (Free, 25.81 MB)
Use Shift to Compare Edits in iPhoto '08
In iPhoto '08, while you're editing a photo, press the Shift key to see a "before" view; let it up to see the "after" view. It's much faster and easier than using Undo and Redo.
iMac Wi-Fi Update 1.0
Check out the Take Control ebooks that expand on the topic in this article:
Set up short abbreviations which expand to larger bits of text,
such as “Tx” for “TextExpander”. With the new custom keyboard,
you can expand abbreviations in any app, including Safari and