Learn how to show a still image for some time in your iMovie project, then zoom/crop/move that image, and then pause on the final image again before moving on.
Learn a timesaving (but potentially dangerous) method of deleting files stored on networked volumes without going through the Finder's "are you sure?" warning dialog.
Learn how to see a rotating set of icon previews for files within folders in Quick Look mode - perhaps not terribly useful, but visually intriguing
Learn how to change the Expose All Windows sort order, and how to control whether or not Expose searches across Spaces in Application Windows mode.
ScreenFlow 2 adds transitions, audio ducking, clip playback speed adjustment, and more to the screen recording and editing suite.
VMware Fusion3 brings better overall performance and a number of major new features to the virtualization app. Fusion now supports "Aero" 3D effects in Windows 7 and Vista, improves 3D graphics performance, and includes full Snow Leopard support.
Data detectors in Mail in 10.5 and 10.6 can help you create new contacts and events from dates, addresses, and phone numbers. Learn how to automatically associate notes with these new entries.
In Snow Leopard, you can use the Recent Items menu to help you quickly find where you saved a recently-used document (or application).
Snow Leopard removed a useful 'download only' option from Software Update. Learn two ways to replace that lost functionality.
Use Terminal to see which processes are using your Internet connection
Apple is now allowing developers of free App Store programs to include in-app purchasing. This should mean the end of two versions of programs—a free “lite” version and the paid-for full program—as developers can activate additional features with in-app purchasing.
Learn another method of switching between application windows for one program, when those windows are open in multiple Spaces
Performance Update 1.0, released Wednesday, fixes a problem with hard drives stalling in 2009 and late 2008 Macs.
Learn about a rare but possibly painful data loss bug involving Snow Leopard and Guest accounts.
Learn how to bypass Snow Leopard's automatic Mail account setup feature.