There are not a lot of websites and resources for C++ news these days. Occasionally, Dr. Dobb’s Journal has some interesting articles, such as the Concurrent Queue seiries. So far there are three articles in response to the original idea, and it looks like more are to follow.
Lock-Free Queues – original idea for a lock-free queue
Lock-Free Code: A False Sense of Security – Herb Sutter’s first in a series of articles on a concurrent queue implementation
Writing Lock-Free Code: A Corrected Queue – Herb Sutter’s second article in the series
Writing a Generalized Concurrent Queue – Herb Sutter’s third article in the series
Somewhat related, there are also some interesting articles on threading as well: