jQuery demo page brainstorming

jQuery demo page brainstorming

jQuery obviously needs a good demo page that is heavily promoted on
the jQuery homepage and features the jQuery core scope: DOM
manipulation (select and do something), Ajax and Effects.
I'd like to gather ideas in this thread: What should be included, how
should it look like, one page or several pages (or
tabs/dialogs/whatever to seperate content). Just simple examples to
showcase methods or real-world examples that are a bit more complex
but maybe more useful.
Please focus on ideas, I'll gather them later for further discussions.
Jörn