Clui for Chrome
On the desktop, users are accustomed to having visible handles (icons) to objects that they want to organize, share, or manipulate. Web applications today feature many classes of such objects, like flight itineraries, products for sale, people, recipes, and businesses, but there are no interoperable handles for these kinds of things.
Clui is a platform for exploring a new data type, called a Webit. Webits provide uniform handles to objects found on the web. You can drag and drop Webits between sites to transfer data, auto-fill search forms, map associated locations, or share Webits with others.
See http://clui.csail.mit.edu/ for more details.