Digg/spy effect
I came across with the "digg/spy" when browsing ajaxian for my weekly updates and found the coolest WEB 2.0 implementation, at least for this year. Whats cool about digg/spy is that it uses AJAX to update itself with the latest comments on the news items on digg, in short a real-time view of digg.

Below are some other cool Web 2.0 applications you might like:
Social Bookmarking: http://del.icio.us/
Web 2.0 Start Pages: http://netvibes.com/
Website Clipping: http://clipmarks.com/
Online To Do Lists: http://voo2do.com/
Image Storage and Sharing: http://zoto.com/
Online Chatting: http://www10.meebo.com/
Web-Based Word Processing: http://writely.com/
Online Calendars: http://calendarhub.com/
Project Management & Team Collaboration: http://basecamphq.com/



