diff --git a/notes.md b/notes.md
index e482a14b2b..3429e9d99c 100644
--- a/notes.md
+++ b/notes.md
@@ -50,3 +50,4 @@
 2015-10-10T05:56:00 - Implementing approach from a new paper read last night (onnxruntime)
 2015-10-10T17:18:00 - Refactor for clarity, might break a few tests though (onnxruntime)
 2015-10-23T20:20:00 - Refactor for clarity, might break a few tests though (onnxruntime)
+2015-10-23T05:14:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (onnxruntime)