Added links from the mainpage to modules
diff --git a/contiki/doc/Doxyfile b/contiki/doc/Doxyfile
index 1e775f8..1aa73cf 100644
--- a/contiki/doc/Doxyfile
+++ b/contiki/doc/Doxyfile
@@ -375,6 +375,7 @@
 INPUT                  = ../ek/ek.c \
                          ../ek/arg.c \
                          ../ek/ek.h \
+                         ../ek/ek-service.h \
                          ../ek/dsc.h \
                          ../ek/loader.h \
                          ../ek/pt.h \
@@ -390,17 +391,25 @@
                          ../uip/uip_arp.c \
                          ../uip/uip-split.h \
                          ../uip/uip-split.c \
+                         ../uip/uip-fw.h \
+                         ../uip/uip-fw.c \
                          ../uip/uiplib.h \
                          ../uip/uiplib.c \
                          ../uip/resolv.h \
                          ../uip/resolv.c \
                          ../uip/socket.h \
+                         ../uip/tcpip.h \
                          ../lib/cc.h \
                          ../lib/petsciiconv.h \
                          ../lib/ctk-textedit.h \
                          ../lib/ctk-textedit.c \
                          ../lib/memb.h \
                          ../lib/memb.c \
+                         ../lib/timer.h \
+                         ../lib/timer.c \
+                         ../lib/list.h \
+                         ../lib/list.c \
+                         ../lib/clock.h \
                          ../ek/mt.h \
                          ../ek/mt.c \
                          ../conf/uip-conf.h.example \
diff --git a/contiki/doc/contiki-mainpage.txt b/contiki/doc/contiki-mainpage.txt
index 73baf9f..b8825af 100644
--- a/contiki/doc/contiki-mainpage.txt
+++ b/contiki/doc/contiki-mainpage.txt
@@ -20,4 +20,33 @@
 about Contiki can be found at the Contiki home page:
 http://www.sics.se/~adam/contiki/
 
+\section contiki-mainpage-tcpip TCP/IP support
+
+Contiki includes the uIP TCP/IP stack (http://www.sics.se/~adam/uip/)
+that provides Contiki with TCP/IP networking support. uIP provides the
+protocols TCP, UDP, IP, and ARP.
+
+\sa \ref uip "The uIP TCP/IP stack documentation"
+\sa \ref tcpip "The Contiki/uIP interface"
+\sa \ref socket "Socket-like library"
+
+\section contiki-mainpage-threads Multi-threading and protothreads
+
+Contiki is based on an event-driven kernel but provides support for
+both multi-threading and a lightweight stackless thread-like construct
+called protothreads.
+
+\sa \ref ek "The Contiki event-driven kernel"
+\sa \ref mt "Contiki multi-threading"
+\sa \ref pt "Protothreads"
+
+\section contiki-mainpage-lib Libraries
+
+Contiki provides a set of convenience libraries for memory management
+and linked list operations.
+
+\sa \ref timer "Timer library"
+\sa \ref memb "Memory block management"
+\sa \ref list "Linked list library"
+
 */
\ No newline at end of file