What are the advantages of storing, sharing, and tagging web content this way? What are the disadvantages?

I understand how sorting a whole whack of websites in terms of keywords can be useful, however, I find Delicious to be unintuitive. I find navigating Delicious frustrating because the layout is not very user-friendly. I find the dates on the left-hand side to be distracting and the colours and words all seem to wash into one another. Also, sometimes the list of websites just disappears, which I don't understand because I didn't click anything different. But instead of just complaining, I probably should mention some of the good things about it. I like the idea of organzing a list of websites according to categories, but perhaps being able to view the list of websites in terms of their "tags" first in a kind of collapsable/expandable folder layout would be more user-friendly. Overall, I do not like Delicious, I don't tend to use it when assisting customers, and I don't think I ever will; it's just not for me.

What do you hope to learn from CPL 2.0?

I am already quite familiar with most of the activities we will be learning about over the course of CPL 2.0, but I'm interested in seeing if it will introduce me to any new aspects of these web resources. I have been blogging for quite a few years now, but blogging with a purpose is new to me and I'm a little bit excited to see how it will turn out.

Update:
As a result of playing around with the site, I decided to change my display name from my real name to an alias of sorts.