Dan Bricklin (one of my geek heroes, who I got to meet, and gush all over, back here) has a new product in the works.

wikiCalc is (from Dan's description) a tool for "...creating and maintaining web pages that include data this is more than just unformatted prose, such as schedules, lists, and tables. It combines some of the ease of authoring and multi-person edit ability of a wiki with the familiar formatting and data organizing metaphor of a spreadsheet."

I'm playing with it now. Bloody deadly.