iSilo

iSilo allows you to read HTML files (after conversion) on your Palm, with hyperlinks intact, and DOC files. There is a very good, slightly older free version available, and a newer version with some extra features.

Document Conversion

For Mac OS 7.1 or newer, iSiloMac (a pre-OsX application) will convert HTML files (and plain-text files, of course) into iSilo's format. There are also converters there for other operating systems.

For MacOsX, "iSiloXC is a command-line program used for converting documents specified in a document conversion list file." There are versions for Windows, Mac OsX, BSD, and Linux.