Avoid ACCIDENTAL ALL CAPS With This Nifty Indicator Applet - OMG! Ubuntu
Keyboard Battery Percentage Indicator – Satechi
Amazon.com: USB Keyboard, LED Indicator 13 Shortcut USB Wired Aluminum Alloy Keyboard for Home : Electronics
Num Lock, Caps Lock and Scroll Lock Keyboard Indicator for Ubuntu - CNX Software
Replacing the blue LEDs on a Das Keyboard 4 Professional with red LEDs | Gaelan Lloyd
Scroll Lock - Wikipedia
Amazon.com: Wireless Keyboard and Mouse Combo, Full-Sized 2.4GHz Wireless Keyboard with Comfortable Palm Rest and Optical Wireless Mouse for Windows, Mac OS PC/Desktops/Computer/Laptops (White) : Electronics
Amazon.com: Wireless Keyboard and Mouse Combo, Full-Sized 2.4GHz Wireless Keyboard with Comfortable Palm Rest and Optical Wireless Mouse for Windows, Mac OS PC/Desktops/Computer/Laptops : Electronics
Free Keyboard LEDs software shows state of Caps Lock, Num Lock, and Scroll locks.
show keyboard indicator in ubuntu 13.04 - Ask Ubuntu
What are those little blinking lights called around computer keyboards? What is their purpose? Are they still used today? - Quora