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* *https://stormpath.com/blog/whats-new-apache-shiro-12[What's new in Apache Shiro 1.2]* on 13 March 2012 by Les Hazlewood.
-* *http://www.ibm.com/developerworks/web/library/wa-apacheshiro/[Introducing Apache Shiro]* by Nathan Good on IBM DeveloperWorks, 14 September 2010.
+* *https://web.archive.org/web/20201109014747/http://www.ibm.com/developerworks/web/library/wa-apacheshiro/[Introducing Apache Shiro]* by Nathan Good on IBM DeveloperWorks, 14 September 2010 [archive.org].
* *An Introduction to Shiro (formerly JSecurity/Ki) - A Beginner's Tutorial* by https://www.brucephillips.name/[Bruce Phillips]:
