diff --git a/Hardware-Components.md b/Hardware-Components.md
index d06f8d9..f678d53 100644
--- a/Hardware-Components.md
+++ b/Hardware-Components.md
@@ -3,6 +3,12 @@ Major parts selected so far (subject to change):
 * MAX2837 2.3 to 2.7 GHz transceiver
 * MAX5864 ADC/DAC
 * Si5351 clock generator
+  * [AN619: Manually Generating an Si5351 Register Map](http://www.silabs.com/Support%20Documents/TechnicalDocs/AN619.pdf)
+  * [Datasheet](http://www.silabs.com/Support%20Documents/TechnicalDocs/Si5351.pdf) - this document is a mess of typos, and best used in conjunction with AN619, which has its own typos. Usually, you can reconcile what's true by comparison and a bit of thought.
+  * [Other Documentation](http://www.silabs.com/products/clocksoscillators/clock-generators-and-buffers/Pages/clock+vcxo.aspx) - includes application notes, user guides, and white papers.
 * CoolRunner-II CPLD (considering switch to MAX V)
 * LPC43xx ARM Cortex-M4 microcontroller
+  * [User Manual](http://www.nxp.com/documents/user_manual/UM10503.pdf)
+  * [Datasheet](http://www.nxp.com/documents/data_sheet/LPC4350_30_20_10.pdf)
+  * [Other Documentation (LPC4330FBD144)](http://www.nxp.com/products/microcontrollers/cortex_m4/lpc4300/LPC4330FBD144.html#documentation) - includes errata and application notes.
 * RFFC5072 mixer/synthesizer
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