Fantastic Series on Concurrency...

...by Herb Sutter in Dr. Dobbs Journal. If you're into C++, Herb's blog is a must-read. Plus, check out the feeds available at Dr. Dobbs Journal:

• The Pillars of Concurrency (Aug 2007)
• How Much Scalability Do You Have or Need? (Sep 2007)
• Use Critical Sections (Preferably Locks) to Eliminate Races (Oct 2007)
• Apply Critical Sections Consistently (Nov 2007)
• Avoid Calling Unknown Code While Inside a Critical Section (Dec 2007)
• Use Lock Hierarchies to Avoid Deadlock (Jan 2008)
• Break Amdahl's Law! (Feb 2008)
• Going Superlinear (Mar 2008)
• Super Linearity and the Bigger Machine (Apr 2008)
• Interrupt Politely (May 2008)
• Maximize Locality, Minimize Contention (Jun 2008)
• Choose Concurrency-Friendly Data Structures (Jul 2008)
• The Many Faces of Deadlock (Aug 2008)
• Lock-Free Code: A False Sense of Security (Sep 2008)
• Writing Lock-Free Code: A Corrected Queue (Oct 2008)
• Writing a Generalized Concurrent Queue (Nov 2008)
• Understanding Parallel Performance (Dec 2008)
• Measuring Parallel Performance: Optimizing a Concurrent Queue (Jan 2009)
• volatile vs. volatile (Feb 2009)
• Sharing Is the Root of All Contention (Mar 2009)
• Use Threads Correctly = Isolation + Asynchronous Messages (Apr 2009)
• Use Thread Pools Correctly: Keep Tasks Short and Nonblocking (Apr 2009)
• Eliminate False Sharing (May 2009)

[Updated 5/22/09 with the latest list of articles]