diff --git a/README.md b/README.md
index 65215029ef..2be6092c5a 100644
--- a/README.md
+++ b/README.md
@@ -28,5 +28,6 @@ API Documentation
 * [TCP/IP Socket API](http://mbed.org/handbook/Socket) (Transports: Ethernet, WiFi, 3G)
 * [USB Device API](http://mbed.org/handbook/USBDevice)
 * [USB Host API](http://mbed.org/handbook/USBHost)
-* [Peripheral Drivers API](http://mbed.org/handbook/Homepage)
 * [DSP API](http://mbed.org/users/mbed_official/code/mbed-dsp/docs/tip/)
+* Flash File Systems: [SD](http://mbed.org/handbook/SDFileSystem), [semihosted](http://mbed.org/handbook/LocalFileSystem)
+* [Peripheral Drivers API](http://mbed.org/handbook/Homepage)