underconsideration.com 
A great design community site. Interviews, boards and valuable resources.

Zeldman.com
Checkout the Daily Report from the expert of Web standards.

Stefan Sagmeister: How Good is Good?
A must-read article from an outstanding conceptual thinker. 

BBC interviews
A series of interviews with leading artists, architects and designers.

Studio  360
Studio 360 is a radio show about arts and culture.

Color,Contrast & Dimension
Excellent interactive site all about color.

Hotscripts
Huge PHP, ASP, CGI, Perl, and JavaScript collection.

Fontbrowser
An amazing online font viewer.

Moock
Moock's invaluable resource site.

Broadband Reports
Check your Internet connection speed.

Browser Size Test
Test your pages in IE and Netscape for PC and Mac.

Adobe
Typography basics from the experts.

Fonts  for Flash
Pixel fonts designed for use with Macromedia Flash

Marketingtool.com
World wide Directory for Flash Designer and Developers