Rob GriffithsSenior Contributor, Macworld

Former Macworld Senior Editor Rob Griffiths founded Mac OS X Hints. He's now master of ceremonies at Many Tricks Software.

Looking at the changes to Snow Leopard's top command

Learn about some key changes to the Unix 'top' command in Snow Leopard

Directly set screen sharing image quality level

Learn how to set the quality level of a remote Mac's screen in the Screen Sharing application in 10.5 and 10.6.

Add more effects to Photo Booth and iChat

Learn how to add over 20 additional effects to photos taken in Photo Booth and iChat

Four hints about Mail and Spaces

Four hints for the price of one ... learn how to easily switch between open windows of an app across Spaces, how to delete Mail messages without showing a preview of the next, and two tips for working with links in messages in 10.6's Mail app.

Parallels Desktop 5 for Mac arrives

Parallels Desktop 5 for Mac is shipping, including Aero support in Vista and Windows 7, a new Crystal mode for full Windows/Mac OS integration, OpenGL 2.1 acceleration in Windows and Linux, and more.

Create pause-zoom-pause effects in iMovie stills

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.