diff --git a/tools/nmap.md b/tools/nmap.md
index b95ff25..37ee8c8 100644
--- a/tools/nmap.md
+++ b/tools/nmap.md
@@ -2,12 +2,40 @@
 
 Notes
 -------
+What is Nmap?
+Nmap(“Network Mapper”)  is a security scanner originally written by Gordon Lyon used to discover hosts and services on a computer network, thus creating a "map" of the network. 
 
 Help Text
 -------
 
 Example Usage
 -------
+# nmap -O -v scanme.nmap.org
+
+Starting Nmap ( http://nmap.org )
+Nmap scan report for scanme.nmap.org (74.207.244.221)
+Not shown: 994 closed ports
+PORT      STATE    SERVICE
+22/tcp    open     ssh
+80/tcp    open     http
+646/tcp   filtered ldp
+1720/tcp  filtered H.323/Q.931
+9929/tcp  open     nping-echo
+31337/tcp open     Elite
+Device type: general purpose
+Running: Linux 2.6.X
+OS CPE: cpe:/o:linux:linux_kernel:2.6.39
+OS details: Linux 2.6.39
+Uptime guess: 1.674 days (since Fri Sep  9 12:03:04 2011)
+Network Distance: 10 hops
+TCP Sequence Prediction: Difficulty=205 (Good luck!)
+IP ID Sequence Generation: All zeros
+
+Read data files from: /usr/local/bin/../share/nmap
+Nmap done: 1 IP address (1 host up) scanned in 5.58 seconds
+           Raw packets sent: 1063 (47.432KB) | Rcvd: 1031 (41.664KB)
 
 Links
 -------
+
+http://nmap.org/