Architecture versus Design

Rick Kazman and Amnon Eden's "Defining the Terms Architecture, Design, and Implementation" and "Architecture, Design and Implementation" provide a distinction based on Intension and Locality criteria.

Rick and Amnon argue that

• Architectural specifications are intensional and non-local
• Design specifications are intensional but local
• Implementation specifications are both extensional and local

They demonstrate that:

• Architectural styles are intensional and non-local
• Design patterns are intensional and local
• Implementations are extensional and local

A must read for architects and designers.

On Software Design

• Jack W. Reeves's classic essay, titled "What is Software Design" is a must read for software professionals.
• Martin Fowler's "Is Design Dead?"
• This is a good read on high level design and low level design.

What Every Web Programmer Needs To Know About Security

Excellent presentations titled "What Every Web Programmer Needs To Know About Security".

Software Architecture Challenges in the 21st Century

A workshop titled "Software Architecture Challenges in the 21st Century" took place some time back (June 2009).
Here is Diomidis D. Spinellis account of the talks. Presentations are located here.