Now that Tonya is writing more articles for TidBITS, we need a way to differentiate who has written what, particularly with MailBITS. From now on, appropriate initials will appear in brackets at the end of the MailBITS, and I'll include myself in bylines. In the past to do so was redundant, but now we have to be more careful to identify the "I" in an article. [ACE]
Go Back and Forth Fast in Preview
If you're reading a PDF in Apple's Preview software, and you follow a bookmark or an internal link to move around within the PDF, you can quickly return to where you were by pressing the keyboard shortcut Command-[ (that's Command-Left Bracket). Or, you can choose Go > Back.
The command works iteratively, so you can go back to just the previously viewed page or if you issue the command again, to the page before that, and so on. There's also an equivalent Go > Forward (Command-]).