Trunk.ly is not designed to be yet another bookmark service. It's your personal search engine. It builds a search index just for all the links you've shared.

Why bother tagging each link if you can full text search them?

Try mine at http://trunk.ly/alexdong/ Search for "chinese financial", or "ruby erlang" and you'll see.

I enjoy tagging. Google has automated tagging on his Chinese QA system (they used Lated Dirichilet Allocation algorithm for this), and it is in general usefull when you want to have personal opinion on a link.

Besides that, it seems nice.

I do notice myself tagging more after I start to use trunk.ly daily. And I agree that "tagging" is a great to do attach personal opinions on a link.

Trunk.ly can import delicious tags. We'll soon add the ability for you to add a tag to your link as well.

Having said this, we found most people do not tag, they just search what they want and continue with their life. Based on the existing user behavior data we have, 1% people clicks tag in two weeks. 7-10% uses search at least once.