Graffiti® Tricks
Graffiti®2 Tips (Adobe PDF)
Handango's Palm OS Support
InterPUG: Find a Palm User Group
More Tips and Tricks (PalmOne)
Palm Desktop and HotSync® support
Palm Essentials (About.com)
Palm HotSync® Support
Palm Migration: Some important things to consider when moving data from an old to a new device. Also, be sure to check the support page for your handheld and see if there are any upgrade tutorials.
Palm Setup and Support Guides: Will help you learn to configure, solve problems and better use your handheld.
PalmGear's Knowledgebase: Responses to frequently asked questions about PDAs
PalmOne's Knowledge Library
PalmOne's Support Downloads: Download the most current Palm software, accessory drivers, Desktop updates and OS updates.
PalmPilot Top Ten Tips and Tricks
Palmtops/PDA Tips Archive (About.com)
Palm Treo 650 Software Compatibility List: This list includes all the software that has been verified by other users to work on the PalmOne Tungsten T5. Because of the similarities the Treo 650 has with the T5, the same list for the T5 may or may not apply to the Treo 650.
Palm User Groups: PUGs provide user-to-user support, software and hardware demos, and help you learn how to better use your handheld.
PDA 101
PDAsupport.com: Designed to help you find the best sources of support for your PDA.  Links for  support, software, reviews, magazines, news, articles, a guide, and other items as well.
Resetting your Palm handheld
Troubleshooting: from PalmPilot: The Ultimate Guide