diff --git a/documentation/ref-manual/introduction.xml b/documentation/ref-manual/introduction.xml
index c3e0c32a69..1094a06561 100644
--- a/documentation/ref-manual/introduction.xml
+++ b/documentation/ref-manual/introduction.xml
@@ -22,7 +22,12 @@
         and the <ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;'>Yocto Project Linux Kernel Development Manual</ulink>.
         For Board Support Package (BSP) structure information, see the
         <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>.
-        You can also find lots of Yocto Project information on the
+        You can find information on tracing and profiling in the
+        <ulink url='&YOCTO_DOCS_PROF_URL;#profile-manual'>Yocto Project Profiling and Tracing Manual</ulink>.
+        For information on BitBake, which is the task execution tool the
+        OpenEmbedded build system is based on, see the
+        <ulink url='&YOCTO_DOCS_BB_URL;#bitbake-user-manual'>BitBake User Manual</ulink>.
+        Finally, you can also find lots of Yocto Project information on the
         <ulink url="&YOCTO_HOME_URL;">Yocto Project website</ulink>.
     </para>
 </section>