JavaScript Libraries and Resources

Libraries

Dynamic Drive: Dynamic Drive is a place to obtain free, original DHTML scripts and components to enhance your web site
Quirksmode.org: What can be done, what can't, what browsers have problems with what. Very comprehensive.
Separating behavior and structure: Why accessibility nuts don't have to be anti-Javascript
Unobtrusive Javascript: Also known as modern Javascript. Plays well with others.
Behaviour: Using CSS selectors to apply Javascript functionality: A library allowing you to play all kinds of tricks without littering your HTML with inline Javascript.
Expanding Lists: CSS/Javascript to expand nested lists
Expanding Lists 2: Another method
Multi-part forms: CSS/Javascript to break up a long form into multiple pseudo-pages
Table sort: Rearrange table rows with accessibility tags and Javascript.
Unobtrusive show/hide behavior reloaded: Various examples of showing or hiding things. Degrades gracefully.
AJFORM: World's Easiest JavaScript AJAX ToolKit