CPL 2.0 - Delicious Assignment

I have checked out the Best Websites on Delicious and feel comfortable using Best Websites. I do not have any tips for using Best Websites on Delicious.

CPL 2.0

Which aspect of Web 2.0 am I the most intrigued (or scared) by?

All of this is a new and challenging experience for me and I am intrigued by the challenge of learning something new which is out of my comfort zone.