diff --git a/.gitmodules b/.gitmodules
index 5b18932..2a7d658 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -11,3 +11,7 @@
 	path = Docker
 	url = https://gitlab.com/libre-knowledge/docker.git
 	ignore = dirty
+[submodule "VirtualBox"]
+	path = VirtualBox
+	url = https://gitlab.com/libre-knowledge/virtualbox.git
+	ignore = dirty
diff --git a/README.md b/README.md
index a646d1f..171d5ed 100644
--- a/README.md
+++ b/README.md
@@ -71,7 +71,7 @@
   由微軟所推出之支援[伴虛擬化](#伴虛擬化-para-virtualization)的[原生/裸機型虛擬機監管器](#原生裸機型虛擬機監管器nativebare-metal-hypervisor)解決方案
 * QEMU  
   支援[全虛擬化](#全虛擬化-full-virtualization)與（搭配 KVM）[伴虛擬化](#伴虛擬化-para-virtualization)的[託管型虛擬機監管器](#託管型虛擬機監管器hosted-hypervisor)解決方案
-* VirtualBox  
+* [VirtualBox](https://gitlab.com/libre-knowledge/virtualbox)  
   由<ruby>甲骨文<rp>(</rp><rt>Oracle</rt><rp>)</rp></ruby>公司推出之具備使用者友善的圖形化操作界面、支援[伴虛擬化](#伴虛擬化-para-virtualization)的開放來源碼[託管型虛擬機監管器](#託管型虛擬機監管器hosted-hypervisor)解決方案
 * Xen  
   支援[全虛擬化](#全虛擬化-full-virtualization)與（搭配 KVM）[伴虛擬化](#伴虛擬化-para-virtualization)的開放來源碼[原生/裸機型虛擬機監管器](#原生裸機型虛擬機監管器nativebare-metal-hypervisor)解決方案
diff --git a/VirtualBox b/VirtualBox
new file mode 160000
index 0000000..f9443df
--- /dev/null
+++ b/VirtualBox
@@ -0,0 +1 @@
+Subproject commit f9443dfe1a074163ba921c0bb1609a424d57e1a1