last update:
TAB switches to the last application u used or if you hold you can even switch to another open program. This works in OS 10 as well.
For support read user forums on:
Download the Tekserve FAQ (pdf)
MacInTouch: Up to date information for the Macintosh community
MacCentral: An excellent source for Macintosh information, updated several times a day with breaking news
MacOSXHints: "Your community-built source for OS X hints and information"
MacSurfer's Headline News: Tons of news about all things Macintosh, updated by the minute!
Versiontracker: The latest drivers, updates of your software and freeware too!
Frequently used support pages
For a Creaky Mac, Tricks to Jog the Memory
important FIREWIRE notes for editors
Running a MAC smoothly (my personal top 10 of rules)
stupid things on the mac (cached)
TCP/IP Info for connecting to internet using DCHP Server (problems with slowness)
Troubleshooting System Errors or Freezes for Mac OS 9.x and Earlier