ATtiny Microcontrollers: A Low-cost Arduino Alternative | Custom | Maker Pro
Atomic Cactus – Servo control with AVR ATTiny x61 (261/461/861)
ATtiny85 Arduino Programming with Sparkfun Tiny Programmer on a Mac – The Book of Jason
AVR Software Defined Radio (Part 1): Precision Signals with an ATtiny Micro | Elektor Magazine
Tiny AVR Programmer - Two ISP headers to use with other AVR microcontrollers - Plugs directly into USB port: Attiny: Amazon.com: Industrial & Scientific
ATtiny85 Powered High Voltage AVR Programmer - Hackster.io