update chapter7/web-resources.md

Author: forhappy

zh/chapter7-Atomic/web-resources.md

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 # C++ 原子类型详解 #
 
 - C++11 - the new ISO C++ standard: [http://www.stroustrup.com/C++11FAQ.html](http://www.stroustrup.com/C++11FAQ.html)
+- Common Pitfalls in Writing Lock-Free Algorithms: [http://blog.memsql.com/common-pitfalls-in-writing-lock-free-algorithms/](http://blog.memsql.com/common-pitfalls-in-writing-lock-free-algorithms/)
+- https://www.kernel.org/doc/Documentation/memory-barriers.txt: [https://www.kernel.org/doc/Documentation/memory-barriers.txt](https://www.kernel.org/doc/Documentation/memory-barriers.txt)
+- Choose Concurrency-Friendly Data Structures: [http://www.drdobbs.com/parallel/choose-concurrency-friendly-data-structu/208801371](http://www.drdobbs.com/parallel/choose-concurrency-friendly-data-structu/208801371)
+- Lock-Free Data Structures: [http://www.drdobbs.com/lock-free-data-structures/184401865](http://www.drdobbs.com/lock-free-data-structures/184401865)
+- Concurrent Programming with Chain Locking: [http://www.drdobbs.com/parallel/concurrent-programming-with-chain-lockin/240149442?pgno=1](http://www.drdobbs.com/parallel/concurrent-programming-with-chain-lockin/240149442?pgno=1)
+- Practical lock-free data structures: [http://www.cl.cam.ac.uk/research/srg/netos/lock-free/](http://www.cl.cam.ac.uk/research/srg/netos/lock-free/)
+- 透过 Linux 内核看无锁编程: [http://www.ibm.com/developerworks/cn/linux/l-cn-lockfree/index.html](http://www.ibm.com/developerworks/cn/linux/l-cn-lockfree/index.html)
+- Non-blocking algorithm: [http://en.wikipedia.org/wiki/Non-blocking_synchronization](http://en.wikipedia.org/wiki/Non-blocking_synchronization)