Today the new Delicious has landed. Along a visual refresh, they’ve also introduced a concept named stacks
The stacks allow one to tell a story, a trend I see popping up in many of the services we know and use: Gowalla has shifted towards stories, Facebook soon will tell “The story of your life”, services such as Storify allow you to tell a story via tweets/social media, Digg has introduced the concept of Newsrooms, etc.
Update 2011.09.28: Turns out the new Delicious is buggy or not working at all for some. The API for example has been zapped, exporting/backing up your links is not possible anymore (the page just keeps loading and loading), etc.