diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ See also the list of [popular games on Github](https://github.com/leereilly/game
 
 ## Contents
 
-- [Libraries](library/_toc.md) (8)
+- [Libraries](library/_toc.md) (12)
 - [Frameworks](framework/_toc.md) (44)
 - [Adventures & Visual Novels](adventure/_toc.md) (8)
 - [RPGs](rpg/_toc.md) (7)
diff --git a/library/_toc.md b/library/_toc.md
index 846892c3..a54fabd1 100644
--- a/library/_toc.md
+++ b/library/_toc.md
@@ -2,7 +2,11 @@
 
 - [Allegro](allegro.md)
 - [Boost](boost.md)
+- [Crypto++](crypto.md)
 - [LZMA SDK](lzma.md)
+- [Libxml2](libxml2.md)
+- [Open AL](openal.md)
+- [Open AL Soft](openalsoft.md)
 - [Simple DirectMedia Layer (SDL 2)](sdl_2.md)
 - [Simple and Fast Multimedia Library](sfml.md)
 - [XZ Utils](xz.md)
diff --git a/library/crypto.md b/library/crypto.md
new file mode 100644
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--- /dev/null
+++ b/library/crypto.md
@@ -0,0 +1,12 @@
+# Crypto++
+
+_{One line description}_
+
+- Home: https://cryptopp.com/
+- Wikipedia: https://en.wikipedia.org/wiki/Crypto%2B%2B
+- Download: https://cryptopp.com/#download
+- Code: https://github.com/weidai11/cryptopp
+- Language(s): C++
+- License: Boost-1.0
+
+## Building
diff --git a/library/libxml2.md b/library/libxml2.md
new file mode 100644
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+++ b/library/libxml2.md
@@ -0,0 +1,14 @@
+# Libxml2
+
+_Libxml2 is the XML C parser and toolkit developed for the Gnome project (but usable outside of the Gnome platform)._
+
+- Home: http://www.xmlsoft.org/
+- Wikipedia: https://en.wikipedia.org/wiki/Libxml2
+- Download: http://www.xmlsoft.org/downloads.html
+- State: mature
+- Code: https://git.gnome.org//browse/libxml2/
+- Language(s): C
+- License: MIT
+
+## Building
+
diff --git a/library/openal.md b/library/openal.md
new file mode 100644
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--- /dev/null
+++ b/library/openal.md
@@ -0,0 +1,11 @@
+# Open AL
+
+_Cross-platform audio application programming interface (API)._
+
+- Home: http://www.openal.org/
+- Wikipedia: https://en.wikipedia.org/wiki/OpenAL
+- Code: http://www.openal.org/downloads/
+- License: Proprietary since v1.1, LGPL before
+
+## Building
+
diff --git a/library/openalsoft.md b/library/openalsoft.md
new file mode 100644
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+++ b/library/openalsoft.md
@@ -0,0 +1,14 @@
+# Open AL Soft
+
+_Software implementation of the OpenAL 3D audio API._
+
+- Home: http://kcat.strangesoft.net/openal.html
+- Wikipedia: https://en.wikipedia.org/wiki/OpenAL#Implementations
+- Code: http://repo.or.cz/openal-soft.git
+- Language(s): C
+- License: LGPL-2.0
+
+## Building
+
+Uses CMake
+