New from the Yahoo! Widgets team: The Ever-Changing Widget Landscape. As noted by the inestimable Mr. Arrington, it's an unbiased, unblushing overview of the various widget (and widget-flavored) platforms out there, including Yahoo! Widgets, Apple's Dashboard Widgets, Microsoft's Vista Sidebar, and Google's Desktop Gadgets.
Pointers from comments include Adobe's Apollo and AOL's Boxely, which looks to be a very nice combination of in-browser and on-desktop environments. It's always great to see those comments, both here and on other developer sites ... keep 'em coming!
Kent Brewster, Yahoo! Developer Network