diff --git a/README.md b/README.md
index db0205a0eac36928cffe559a7da2df49adbe93de..969715116166dafd19bff3a14013ca414620ec38 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,42 @@ This library (should) cover all the electronics components found in the official
 4. Go to "Preferences / Manage Symbol Libraries" and add `fab.lib` as symbol library.
 5. Go to "Preferences / Manage Footprint Libraries" and add `fab.pretty` as footprint library.
 
+## On-Going TODO
+
+**Check symbols and remove duplicates**
+
+- [x] Resistor
+- [x] Potentiometer
+- [x] Capacitor
+- [x] Choke coil, inductor
+- [x] Diode
+- [ ] Transistor
+- [ ] H-Bridge motor drivers
+- [ ] Tripple H-Bridge motor drivers
+- [ ] Stepper motor drivers
+- [ ] Regulators
+- [ ] Charge controllers
+- [ ] Amplifiers
+- [ ] LEDs
+- [ ] Photodetectors
+- [ ] Speakers and mics
+- [ ] Temperature sensors
+- [ ] Hall-Effect sensors
+- [ ] Accelerometer
+- [ ] Pressure sensors
+- [ ] Op-Amp
+- [ ] Microcontrollers
+- [ ] Prog logic chips
+- [ ] Radios
+- [ ] Crystals
+- [ ] Buttons and switches
+- [ ] Magnets
+- [ ] Connectors
+- [ ] Jacks and plugs
+- [ ] Battery holders
+- [ ] USB chips and connectors
+- [ ] SD card socket
+
 ## Contributing
 
 Please refer to the [CONTRIBUTING](CONTRIBUTING.md) document. Run `test.py` locally before `git push`.