diff --git a/virtual_machines/README.md b/virtual_machines/README.md
index 5db407a..1229526 100644
--- a/virtual_machines/README.md
+++ b/virtual_machines/README.md
@@ -3,3 +3,5 @@
 * [A Comparison of Software and Hardware Techniques for x86
   Virtualization](http://www.vmware.com/pdf/asplos235_adams.pdf)
     - virtualization theory background
+* [An Updated Performance Comparison of Virtual Machines and Linux Containers](http://domino.research.ibm.com/library/cyberdig.nsf/papers/0929052195DD819C85257D2300681E7B/$File/rc25482.pdf)
+    - This paper explores the performance of traditional virtual machine deployments, and contrast them with the use of Linux containers.  
diff --git a/virtual_machines/an-updated-performance-comparison-of-virtual-machines-and-linux-containers.pdf b/virtual_machines/an-updated-performance-comparison-of-virtual-machines-and-linux-containers.pdf
new file mode 100644
index 0000000..b78ec5e
Binary files /dev/null and b/virtual_machines/an-updated-performance-comparison-of-virtual-machines-and-linux-containers.pdf differ