diff --git a/operating_systems/README.md b/operating_systems/README.md
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 * :scroll: [Live Migration of Virtual Machines](live-migration-of-virtual-machines.pdf)
 
+* :scroll: [Jails: Confining the omnipotent root.](https://us-east.manta.joyent.com/bcantrill/public/ppwl-cantrill-jails.pdf)
+
+* :scroll: [Solaris Zones: Operating System Support for Consolidating Commercial Workloads](https://us-east.manta.joyent.com/bcantrill/public/ppwl-cantrill-zones.pdf)
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