diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..bea575523
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+TAGS
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7500a9e23..1ec368442 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -505,6 +505,13 @@ if (APPLE)
 endif (APPLE)
 
 
+#
+# find some useful tools
+#
+find_program(CTAGS ctags)
+find_program(ETAGS etags)
+
+
 #
 # C & C++ setup
 #
@@ -727,6 +734,17 @@ elseif (CMAKE_HOST_WIN32)
   add_definitions (-DWIN32)
 endif ()
 
+#
+# source navigation
+#
+set (sources
+  ${CMAKE_SOURCE_DIR}/*
+  ${CMAKE_SOURCE_DIR}/logbook/*
+  ${CMAKE_SOURCE_DIR}/lib/*
+  )
+add_custom_target (ctags COMMAND ${CTAGS} -o ${CMAKE_SOURCE_DIR}/tags -R ${sources})
+add_custom_target (etags COMMAND ${ETAGS} -o ${CMAKE_SOURCE_DIR}/TAGS -R ${sources})
+
 
 # embedded resources
 function (add_resources resources path)