I got a Palm IIIx earlier this year, figuring it would help me keep organized. The Palm is like a step backwards into an earlier age of computing -- lots of small, well-written apps that do clever things, not as clumsy or random as modern bloatware.
A couple of Palm websites I check almost every day:
Shareware: US$20 (goes to a charitable cause)
Current version: 3.0q
Get it from: http://www.gorilla-haven.org/pimlico/datebk3.htm
The Palm Datebook app on steroids. Integrates To-Do info, offers a spiffy two-week view (see screen shot), supports appointments in different time zones, assigns icons to categories, allows you to create templates for common appointment types.
DateBk3 takes up a relatively large amount of RAM for a Palm app (over 50k), but it's easily worth it. A stripped-down version of DateBk3 is the default Datebook app in the new Handspring Visor.
Commercial Software: US$12.50
Current version: 2.53
Get it from: http://www.iSilo.com/
An HTML viewer for the Palm. Not a web browser -- the regular version of iSilo doesn't allow you to download pages off the web. What you can do is download pages with your desktop computer and view them on your Palm (after converting them with the freeware conversion app, available for Windows, Linux, and the Mac, though the Mac version crashes my machine). Recent versions of iSilo can also read Doc files.
Current version: 2.4
Get it from: http://www.RoamingEmpire.com/xman/
An address locator for Manhattan. Enter a street address, and X-Man gives you a nearby cross-street. Non-New-Yorkers may not properly appreciate the value of such an application.