Brad Appleton's Smalltalk Links
Some 70 categorized links.
Cetus Links: Smalltalk
Has a whale logo, and well it should: near 20,000 categorized links on objects and components. Very comprehensive. Do it.
Internet Smalltalk Resources
Brief list: archives (FTP, base page, comp.lang.smalltalk), FAQ.
Little Language List: Smalltalk
Short list of some of today's vital Smalltalk links.
Monty Kamath's GoodStart: Smalltalk Links
Alphabetized links, with add-it-yourself web form.
Squeak Links
Largest, most extensive, categorized link list on Squeak. English, Nihongo.