I'm not sure if that's what you're looking for, but you could look into
Google Chart:
http://code.google.com/apis/chart/
There's also Yahoo's YUI Charts, but that requires Flash:
http://developer.yahoo.com/yui/charts/
I would assume that both options are routed through the Google/Yahoo
servers though, so chances are that neither will work offline.
HTH.
-- F.
Not quite correct (apparently... ):
http://www.tiddlywiki.org/wiki/Google_Analytics
Nevertheless, for the moment, I would agree that using TiddlyWiki as a
regular website is not a good idea:
http://www.tiddlywiki.org/wiki/TiddlyWiki_As_a_Website
These issues are being worked on, but there's no ETA yet.
> * Your friend starts writing longer pages
A server-side solution with on-demand loading is in the works - but
again, no ETA yet.
-- F.
* Your friend wants to use slick graphic design. So far, TW looks like
an improvement over the ...ugly... current site.
IMO, micro-content is mainly an author feature, not a software feature.
That is, you can use a WordPress-powered blog for micro-content
publishing, and you can just as well use TiddlyWiki for macro-content.
However, in its implementation of the micro-content principle, TW is
probably unique.
Just keep in mind that not everyone has JavaScript activated (think
screen readers). If you're confident that your target audience fulfils
these basic requirements though, and don't care about search engines
indexing your content, there's little else stopping you from using TW as
a website.
-- F.
There's TiddlyBlogger:
http://boycook.wordpress.com/2007/10/11/tiddlyblogger-is-here/
Not sure how well it works though; I have yet to try this myself.
-- F.