web2.0

Jyte is a site that allows you to make claims about yourself and your friends, give and receive cred and manage your contacts and groups.

A collection of dish and restaurant reviews.

Das digitale Geschäft aus der Praxis eines Software- und Beratungshauses. Identity 2.0, Web 2.0 und Identity Management.

An awesome hosted e-commerce platform written in Ruby on Rails.  They support OpenIDs for all authentication.

Springnote is a web notebook service that captured the essence of wiki. you can write ideas anytime anywhere online and collaborate with your friends on pages.  It supports groups.
This is the first wiki service in Korea also.