International:

Businessweek: Innovation and Design
http://www.businessweek.com/innovate/
Reviews, articles on Design and Innovation - strategy, creativity and research

Core 77
http://www.core77.com
The popular online magazine for design with great resources - news, articles, discussion boards, links, list of firms and portfolios, job postings, etc.

Design Observer
http://www.designobserver.com/
Writings and viewpoints on Design and Culture

Dexigner Design Portal
http://www.dexigner.com
Dexigner design portal connects the design world with news, announcements, articles and links.

Design Boom
http://www.designboom.com/eng/
European design e-zine with online online courses, articles on education, design history contemporary design, interviews, etc.

Design Addict
http://www.designaddict.com/
DesignAddict links directory has a large collection of resources useful to the design community.

Design Engine
http://www.design-engine.com/
Design Engine a resource site for designers with news, features, directory, etc.

Kaliber 10000
http://www.k10k.net/
Designer's Lunch Box - has resources on news, events, projects, issues, etc.