diff --git a/main.tex b/main.tex
index 11522b0..6430951 100644
--- a/main.tex
+++ b/main.tex
@@ -25,8 +25,12 @@
 %                                                    %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 	
+% <!-- CONFIGURATION EXAMPLES -->
+
 \include{chapter/baseconf}
 
+% <!-- LAYER 2 -->
+
 \chapter{Layer 2}
 
 \input{chapter/section/switchednetwork}
@@ -35,14 +39,20 @@
 
 \input{chapter/section/spanningtree}
 
+% <!-- INTERVLAN -->
+
 \chapter{L2 to L3}
 
 \input{chapter/section/intervlanrouting}
 
+% <!-- DHCP -->
+
 \chapter{DHCP}
 
 \input{chapter/section/dhcp}
 
+% <!-- ACCOUNTING AND LOGINS, RADIUS, TACACS+ -->
+
 \chapter{Triple A\tsq{s}}
 
 \myquote{}{Remember to log the details, too.}
@@ -53,12 +63,16 @@
 
 \input{chapter/aaa/tacacsplus}
 
+% <!-- NTP -->
+
 \chapter{Network Time Protocol}
 
 \section{The old NTP from \tsq{85}}
 
 \section{Secure NTP}
 
+% <!-- NETWORK MANAGEMENT -->
+
 \chapter{Managemnt}
 
 \section{Network management}
@@ -73,10 +87,14 @@
 
 \subsection{Console server}
 
+% <!-- LAYER 3 STUFF -->
+
 \chapter{Protocols Layer 3}
 
 \input{chapter/section/routednetwork}
 
+% <!-- DESCRIBE THE INTERNET -->
+
 \chapter{The Internet {\footnotesize "Post cold-war modern times"}}
 
 \section{Service Providers}