It's a Delicious clone. Yahoo! announced that they were killing Delicious and I said "well, shoot", because I like Delicious and I've been using it approximately forever. Then I said "Well, I can write my own". So I did.
About 10 hours.
Obvious credit to Delicious for inspiration. It's a great product and it's a shame that Yahoo hung it out to dry.
Thanks to Hacker Newser mslagh for the kickass domain.
The delegated auth buttons are courtesy of Komodo Media and are used under the Creative Commons Attribution-Share Alike 3.0 Unported License.