The delicious.com domain name has long redirected to del.icio.us, but the reverse is now true. The low-down on the name change, from the Delicious blog:
We’ve seen a zillion different confusions and misspellings of “del.icio.us” over the years (for example, “de.licio.us”, “del.icio.us.com” and “del.licio.us”), so moving to delicious.com will make it easier for people to find the site and share it with their friends.
The new site has softer blues, more shading and a more intuitive user interface. For example, the popular page used to have its input in the header, with a directory path metaphor.
That worked for the techies amongst us, but Delicious needed to work for everybody. The new interface, while just a tweak, is much more usable (though I’m still disappointed I can’t search popular for multiple tags).