honeybadger
I had forgotten about the acquisition of delicious this year, until I noticed my default profile pic on the site was an illustrated honeybadger. He really looks more like an carnivorous slice of cantaloupe in my opinion, but I like it either way.
Delicious has been one of those tools that captured my attention during the early social boom, and I've used it fairly often. I've noticed one of the drawbacks to my actual use of such tools is the necessity that there be some kind of easy/seamless method of bookmarking from the browser. If I have to bring up a web page to save a link, it simply won't happen. And truthfully I forget to use the service when I have no extension or addon installed.
The great thing about delicious is my non-complex relationship with the site. I either use it casually or not at all, but nothing of value is lost either way; there isn't the kind of involvement required that many other services desire. Perhaps bookmarking is a fundamental action that we've grown accustomed to as part of the web experience, and the naturalness allows a platform to be concise with optional power-features. I think by examining the idea of a bookmark and obfuscate the functionality, we may, through reflection, discover interesting ways we can translate a complex solution into simple phrasing.
Let's be more conceptual in the wrong way for the right reasons.