Baking Social Interfaces Into Your Design: very good points!

Low cost usability testing - UserTesting.com: Nice nice nice.

Like Button - Facebook Developers

Main Page - The iPhone Wiki

Instants! Collection

Products | Kontagent: I need to check them out.

Modern Web Design Style, Good Web 2.0 Design - Web Design

HiFiWiKi - 在线LRF/PDF/ePub/mobi新闻&书库