diff --git a/README.md b/README.md
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--- a/README.md
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@@ -57,3 +57,10 @@ _**Archives:**_
 *Important note for Atmega 168 users:* Going forward, support for Atmega 168 will be dropped due to its limited memory and speed. However, legacy Grbl v0.51 "in the branch called 'v0_51' is still available for use.
 
 _The project was initially inspired by the Arduino GCode Interpreter by Mike Ellery_
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+Grbl is an open-source project and fueled by the free-time of our intrepid administrators and altruistic users. If you'd like to donate, all proceeds will be used to help fund supporting hardware and testing equipment. Thank you!
+
+[![Donate](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=EBQWAWQAAT878)
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+